How can we help?
Contact Retesim if you have a question before purchasing or need assistance with an existing order or eSIM.
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Before contacting us
These resources may answer your question right away.
Frequently asked questions
Find concise answers about eSIMs, installation and common purchase questions.
View FAQ →Installation Guide
Follow the general steps for installing your eSIM on a compatible device.
View guide →Compatible Devices
Check eSIM support and carrier-unlocked requirements before purchasing.
Check your device →Contacting us about an existing order?
Please include your order number and the email address used during checkout. This helps us identify the correct order.
Support expectations
We will review the information you send and respond using the email address provided. No specific response time or support hours are promised on this page.
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