KOLET eSIM referral code ARZ9CAWB: get 300 Koins worth £3
KOLET is a travel eSIM service for people who want mobile data abroad without swapping their physical SIM card. You install the eSIM before travelling, choose a plan for the country or region you are visiting, and activate the data when you arrive. KOLET says its service covers 190 destinations, with plan options designed for individual countries, regions and wider global travel.
The current supplied KOLET referral offer gives a qualifying new customer 300 Koins worth £3. Use the referral code ARZ9CAWB at checkout when buying an eligible KOLET eSIM plan. The code is a referral reward rather than a general discount code, so check that the Koins or £3 value is shown or confirmed during the live checkout journey before you pay.
Offer at a glance
| Offer detail | Current information |
|---|---|
| Provider | KOLET |
| Referral code | ARZ9CAWB |
| New-customer reward | 300 Koins worth £3 |
| How to qualify | Use the referral code while purchasing an eligible KOLET eSIM plan |
| Reward type | Kolet Koins credit, not a cash withdrawal |
| Where to enter it | At checkout, using the “Add a promo code” option |
| Best confirmation | Check that the referral benefit is accepted before completing payment |
| Availability | KOLET controls current plan, country, account and promotion eligibility |
What is KOLET?
KOLET provides mobile data through an eSIM, which is the digital equivalent of a physical SIM card. A compatible phone can keep its normal SIM active while using KOLET for travel data. That can be useful when you want to receive messages on your usual number but avoid using your home network’s data roaming abroad.
KOLET’s model separates the eSIM from the data plan. The eSIM stays installed on the device, while you buy a plan for the destination and amount of data you need. This means you can prepare before a trip and then choose another plan later without having to replace the eSIM each time you travel.
The provider’s homepage describes coverage across 190 destinations, while its help centre explains that plan availability, duration and data amounts vary. Always check the destination list and plan terms for your own trip rather than assuming that every country has the same price or validity period.
What the 300 Koins reward means
The supplied offer gives a referred customer 300 Koins with a stated value of £3. Koins are an in-app credit, not money that can normally be withdrawn to a bank account. Their practical value is that they can reduce the cost of a future KOLET data purchase, subject to the provider’s account and checkout rules.
KOLET’s official referral guidance explains that the referral code is used when a friend selects an eSIM plan and completes a purchase. The provider says the referral reward is added automatically after the purchase. Because the exact display can depend on the current app or website checkout, take a screenshot or note the confirmation if the reward does not appear immediately.
Do not confuse the supplied 300-Koin referral reward with KOLET’s separate unused-data conversion feature. KOLET also allows some unused data to be converted into Koins, but that is a different mechanism with its own rules. The referral reward described on this page is the 300 Koins worth £3 supplied for using ARZ9CAWB.
How to use the KOLET referral code
- Check that your phone supports eSIM and that it is not locked to a network that prevents another eSIM from being used.
- Open the KOLET app or visit the KOLET website while connected to the internet.
- Choose your destination and select a suitable data plan.
- At checkout, choose “Add a promo code” and enter
ARZ9CAWBexactly as shown. - Confirm that the referral reward is accepted and that the order details are correct.
- Complete the purchase, then check your KOLET account for the 300 Koins credit.
Entering the code at the right stage matters. A code shown in an article, copied after payment or entered into a phone’s network-settings screen is not the same as applying a referral code at KOLET checkout. If the offer is not recognised before payment, stop and check the live promotion terms rather than assuming it will be added later.
Installing a KOLET eSIM before your trip
KOLET recommends installing the eSIM before leaving home while connected to reliable Wi-Fi. Installation needs an internet connection, and airport Wi-Fi can be slow or unavailable. Preparing in advance lets you keep the eSIM ready without starting the travel data plan immediately.
According to KOLET’s FAQ, the data plan does not normally start simply because you purchased or installed it. The plan activates when you reach the destination and begin using data. This gives you a chance to install the eSIM before departure without using up the validity period during the journey.
Follow KOLET’s current installation instructions for your phone. Keep your primary SIM available for calls and messages if you need it, but check which line is selected for mobile data. When you arrive, set KOLET as the data line and enable data roaming for the KOLET eSIM if the instructions require it. Disable data roaming on your normal SIM if you want to reduce the chance of accidental roaming charges.
Choosing the right data plan
The best plan depends on what you will do while travelling. Messaging, maps, email and occasional browsing normally use less data than video calls, streaming, cloud backups or using your phone as a hotspot. Start with your expected use, then compare the available data amount, destination coverage, validity and price.
Country-specific plans can suit a single-destination holiday. Regional plans may be more convenient when you are crossing borders, because you do not need to change plans at every stop. KOLET also advertises global options for travellers who move between multiple regions. The availability and price of each option can change, so the live KOLET plan page is the authority at checkout.
A plan that looks cheap per gigabyte may still be poor value if it expires before your trip ends or excludes a country on your itinerary. Conversely, a larger plan may be useful if you need a hotspot or expect to use maps, video and work applications every day. Compare the total plan price and validity rather than looking at the headline data amount alone.
Using KOLET abroad
Once the plan is active, KOLET can provide mobile data for maps, translation, messaging, email, ride-hailing and other internet services. WhatsApp, FaceTime and similar services use data rather than traditional roaming minutes. KOLET says its eSIM can also support hotspot use on compatible devices, although sharing data with a laptop or tablet can consume a plan quickly.
Keep an eye on the remaining data in the KOLET app. A travel eSIM is not a guarantee of unlimited service unless the particular plan says so. Automatic photo backups, app updates and video streaming can use more data than expected. Use Wi-Fi for large downloads and disable background activity if you are working with a limited plan.
Network performance depends on the local partner networks, destination, phone, buildings and congestion. KOLET’s coverage statement does not mean every location has the same speed or signal. Check the plan details and local coverage information before relying on the eSIM for an essential connection.
KOLET Koins and future purchases
Kolet Koins are designed to be used inside the KOLET service. The provider’s referral guidance says referral credits can be used on future KOLET purchases and have no expiration. Use the account balance during a later plan purchase by making sure the “Use my credits” option is enabled in the app or checkout.
KOLET’s help centre also describes converting unused data into Koins. That feature should be treated separately from the referral campaign because the conversion rate, timing and expiry language can differ. Check the specific explanation shown in your account before converting unused data or assuming that all Koins have identical terms.
The £3 value is therefore best understood as a future-plan credit. It can reduce a later KOLET purchase, but it is not a promise that the whole next plan will be free. The amount you save depends on the price of the plan and the account rules in force when you redeem it.
Who the KOLET referral offer suits
This offer is most useful for someone who already expects to buy a travel eSIM. It may suit a holidaymaker who wants to set up data before flying, a frequent traveller visiting several countries or a remote worker who needs a separate data connection while abroad.
It is less useful if your phone does not support eSIM, if your device is carrier-locked or if you have reliable included roaming from your existing mobile plan. A £3 credit should not be a reason to buy data you do not need. Compare KOLET’s live price and coverage with your current provider, local SIM options and other travel eSIM services.
Important eligibility and referral restrictions
KOLET’s official referral page says the code must be shared and cannot be used as a personal discount. It also says the code will not work if the friend has already claimed KOLET’s 1GB free gift or has made a purchase in the past. That means an existing or previously purchasing customer should not assume that entering the code will create a new reward.
Referral programmes can also reject activity that appears fraudulent or abusive. Use one genuine account, provide accurate details and do not try to create duplicate accounts to repeat a new-customer promotion. KOLET says it may suspend referral benefits when it detects fraudulent activity.
Check the live checkout for country restrictions, plan exclusions, payment requirements and any updated promotion language. The £3 value supplied for this listing is the current offer detail used here; KOLET controls the final eligibility decision.
Troubleshooting the KOLET referral code
The code is rejected at checkout
Check that you entered ARZ9CAWB without spaces and that you are using the promo-code field at checkout. Confirm that you have not already purchased from KOLET or claimed the 1GB free gift. Also check that the selected plan and destination are available under the current referral rules.
The 300 Koins are not visible
First check whether the purchase has completed and whether you are signed into the intended KOLET account. Look in the account balance, confirmation email and spam folder. Keep the order reference and a screenshot of the code acceptance. If the credit remains missing, contact KOLET support through its official app or help centre.
The eSIM will not install
Connect to stable Wi-Fi, confirm that your device supports eSIM and check that the phone software is current. KOLET’s FAQ states that Android users need Android 12 or higher for the app. Do not delete an installed eSIM while travelling unless KOLET support tells you to, because reinstalling may require a new QR code or internet connection.
The phone still shows roaming warnings
Your primary SIM may continue to display notifications from your home network. Confirm that KOLET is selected for mobile data, that data roaming is enabled for the KOLET line where required and that data roaming is disabled on the primary line if you want to avoid accidental use.
Advantages and limitations
Potential advantages
- You can install the eSIM before departure and activate it when you arrive.
- One eSIM can remain on the phone for multiple trips.
- Plans are available for individual destinations, regions and broader travel.
- Hotspot support can help connect a laptop or another device.
- The supplied referral offer adds 300 Koins worth £3 to a qualifying new customer’s account.
Potential limitations
- The phone must support eSIM and may need to be unlocked.
- Data plans, prices, durations and coverage vary by destination.
- Hotspot use can consume limited data quickly.
- The referral reward is account credit rather than cash.
- Customers who have already purchased or claimed the free gift may not qualify.
- Local signal quality depends on the destination network and environment.
Frequently asked questions
What is the KOLET referral code?
The supplied KOLET referral code is ARZ9CAWB. Enter it in the promo-code field during checkout when buying an eligible KOLET eSIM plan.
What does the referred customer receive?
The supplied offer gives the qualifying referred customer 300 Koins worth £3. Koins are KOLET account credit, not a guaranteed cash withdrawal.
When should I enter the code?
Enter ARZ9CAWB at checkout after choosing your destination and data plan. Confirm acceptance before completing payment.
Can I install the eSIM before flying?
Yes. KOLET recommends installation before departure over Wi-Fi. Its FAQ says the plan starts when you activate it at the destination and use data.
Will KOLET replace my normal SIM?
No. The eSIM is a separate digital SIM profile. You can keep your normal SIM installed, but choose the correct line for mobile data and manage roaming settings carefully.
Can I use a hotspot?
KOLET’s FAQ says hotspot use is supported on compatible devices. Remember that sharing data with other devices can increase consumption.
Do KOLET Koins expire?
KOLET’s referral help page says referral credits can be used for future purchases without expiration. KOLET also has separate rules for Koins created from unused-data conversion, so check the wording attached to the credit in your account.
What if the code does not work?
Check the code, account status, previous purchase history, free-gift status, plan and destination. If the issue continues, contact KOLET through its official support channels with your order details.
Verdict: is the KOLET referral offer worthwhile?
The KOLET referral offer is worth considering if you need travel data and your phone supports eSIM. The code ARZ9CAWB gives a qualifying new customer 300 Koins worth £3, while the wider service offers pre-trip installation, destination-based plans and the ability to keep a physical SIM installed.
The reward should not be the only reason to choose a provider. Compare KOLET’s live plan price, coverage, validity and data amount with your existing roaming package and other eSIM services. If the plan suits your trip and the code is accepted at checkout, the Koins provide a useful contribution towards a future purchase.
Official KOLET sources
- KOLET referral programme guidance — referral steps, code rules and Kolet Koins.
- KOLET eSIM FAQ — installation, activation, plans, hotspot and device guidance.
- KOLET official website — destinations, service overview and support information.










