Customer Support

After you have requested a refund and the eSIM has not been activated within 30 days of purchase, we will refund the full purchase price.

The refund will be completed within 5-7 business days. If something went wrong, please contact customer service.

Check in the settings if data roaming is enabled for your simsun eSIM.

If you have booked a simsun eSIM for abroad, make sure you are in the respective country and check if your data volume has been used up.

If you still have problems, please contact simsun customer service.

Please understand that we have no influence on the local expansion of the mobile network and its availability.

By email.

Therefore, please make sure to provide your correct email address during purchase and ensure that your inbox is not full.

To check the data volume of the eSIM, you can open the settings on your device and select the corresponding eSIM. There, the used data volume will be displayed.

Alternatively, you can also click on the activation link you received via email or view it in your customer account.