Troubleshooting
Fixes for when an eSIM won't install, connect, or find a network.
Bank and app codes go to your home number, not your travel eSIM. Why they stop arriving abroad, and the fix for each cause before you are locked out.
Where WhatsApp, FaceTime and other internet calls are blocked in 2026, from the UAE and China to Russia, what still works, and how to stay reachable.
Data works, calls don't: Japan closed its last 3G network in March 2026. Why your own number goes silent, how to check VoLTE roaming, and what still works.
Signal bars measure how loud the mast is, not how many phones share it. Why data dies at fireworks, stadiums and Christmas markets, and what actually helps.
Every order confirmation email links straight to a PDF invoice, and My account keeps one for every eSIM and top-up, guest checkouts included.
Never installed your eSIM? Refund it instantly from My account. Already installed or used it? Here's exactly when a refund is still possible.
4G instead of 5G on a travel eSIM abroad usually isn't a fault. Local coverage decides it, not your home network's 5G. Here's why, and when to check further.
Paid, but your eSIM still says Provisioning or Installed, not Active? Here’s what each status means, how long setup really takes, and when to worry.
“eSIM not working” can mean three different problems. Check Settings for thirty seconds to tell which one you have, then jump straight to the right fix.
Seeing "No Service" or "Forbidden" on a travel eSIM abroad? What it means, why it happens, and the fixes that actually work.
Your unlimited eSIM slowing down mid-trip usually isn’t a fault. Here’s exactly when the daily high-speed allowance resets, and when it isn’t that.
No account, a different email, or a confirmation lost in spam: here's every place a Zwitchy order actually lives, and the fastest way back to it.