Support
Contact OneTap.Global
Need help choosing a plan, activating your eSIM, or troubleshooting data? Reach out and we’ll get you connected fast.
Contact details
For the fastest help, email us with your order number (if you have one), your destination country, and your device model. We typically respond within 24 hours (often much sooner).
Email: support@onetap.global
Support: Online-only (no phone support)
Hours: 24/7 email support
Get help now
Send us a message
Tell us where you’re traveling and what you need. If you’re contacting us about an existing purchase, include your order number for quicker support.
Before you contact us
These quick answers solve most issues in minutes.
How do I activate my eSIM?
After checkout, you’ll receive a QR code. On your phone, go to Settings → Cellular/Mobile Data → Add eSIM, then scan the QR code and follow the prompts.
When should I install the eSIM?
Install anytime, but turn on the eSIM line and data roaming when you arrive at your destination (unless your plan says otherwise).
My data isn’t working—what should I check first?
Confirm the eSIM line is selected for Cellular Data, Data Roaming is enabled for that line, and Airplane Mode is off. If needed, restart your phone.
Can I use eSIM and my physical SIM together?
Yes on most compatible devices. Keep your physical SIM for calls/SMS and use the OneTap.Global eSIM for data.
How do I know if my phone is compatible?
Check our compatibility list, then confirm your device is unlocked by your carrier.