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Help with your VietSIM eSIM
Installing, switching on in Vietnam, connection problems and refunds. Have the link to your order page ready.
How to install your Vietnam eSIM
Install the eSIM before you fly, on Wi-Fi or mobile data. On iPhone open Settings, Cellular, Add eSIM and scan the QR code on your order page. On Android open the SIM manager and choose Add eSIM. A QR code can usually be installed only once, so never delete the eSIM after installing it.
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Turn on your eSIM in Vietnam
When you land in Vietnam, turn the VietSIM line on and choose it for mobile data. Turn off data roaming on your home SIM so it cannot run up charges. Install the eSIM within 30 days of buying it from us; if your trip starts later than that, write to us first.
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eSIM not connecting in Vietnam
Start with the phone settings, not the eSIM. Check that the VietSIM line is on and selected for mobile data, turn Data Roaming on for that line and restart the phone. If there is still no internet after 10 minutes, email us your order link, phone model and screenshots.
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Refunds and lost QR codes
Email contact@vietsim.com with the link to your order page, or the email address you paid with and the payment date. An eSIM that does not work in Vietnam and cannot be fixed is refunded in full. Approved refunds are sent to your card within 5 business days, and your bank may need 5 to 10 more to show them.
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Still need help?
Email us the link to your order page and your phone model. We reply within 14 days.
contact@vietsim.com