How can we help?
What is an eSIM and how does a travel eSIM work?
Getting started · 3 min read
How to buy a OneSim eSIM
Getting started · 3 min read
When does my plan start?
Getting started · 2 min read
How to install your eSIM on iPhone
Installation · 4 min read
How to install your eSIM on Android (Samsung, Pixel and others)
Installation · 4 min read
How to turn on data roaming for your eSIM
Using your eSIM · 3 min read
How to check how much data you have left
Using your eSIM · 2 min read
How to top up your eSIM with more data
Using your eSIM · 2 min read
Can I keep my phone number while using the eSIM?
Using your eSIM · 3 min read
Can I use my eSIM as a hotspot?
Using your eSIM · 2 min read
Refunds and cancellations
Payments & refunds · 2 min read
eSIM not working? Fix no signal or no internet
Troubleshooting · 4 min read
Still need help?
Our support team answers by email. Include your order number (it looks like OS-7KQ2MX) so we can help you faster.