The eight things people actually ask: whether your phone can take an eSIM, how to install it, why there is no data yet, when your days start, and how refunds work.
Two things have to be true, and they are the reason almost every travel eSIM disappoints someone:
Check both before you buy. If you already did and it turns out your phone cannot take it, section 06 gives you your money back.
Install on wifi before you fly, then turn Data Roaming ON for the JumboSIM line — it will not work without it.
Install at home on wifi, before you fly — you need a working connection to download the profile, which is exactly what you will not have at the airport.
Android wording differs by manufacturer, but the sequence is the same: add the eSIM, then turn roaming on for it.
Almost always one of these, in this order:
If none of that does it, our contact form with your order link — we would rather hear about it while you are still travelling than after.
On the first connection, not at purchase. A 7-day plan bought three weeks before your trip still gives you seven days from the moment it first attaches to a network in the destination.
That is why installing early costs you nothing, and why a plan you never installed does not quietly expire.
JumboSIM plans are data only. No voice calls, no SMS, no phone number of their own. Calling and messaging work over data through WhatsApp, FaceTime, Signal, Telegram and the rest.
Your own SIM stays in the phone and keeps your number. You choose which line carries data, so you can leave your home line on for calls while paying nothing for its roaming data.
One thing to plan for: a bank that sends login codes by SMS sends them to your home line. Keep it in the phone if you will need those codes.
Not installed it yet? Full refund, 30 days, no reason needed. Your trip changed, you bought the wrong destination, or the phone turned out to be locked — all covered.
Installed but it will not connect? Work through section 03 first, then tell us. If we cannot make it work we will replace the profile or refund you.
Already used the data? That is not refundable — a prepaid plan is consumed as it is used.
The full policy is in the Terms, section 05.
Your order page holds the QR code, the activation code and the install steps, and it keeps working. It is the link in the delivery email we sent when you bought — search your inbox for JumboSIM, and check spam.
Still nothing? Put in the address you bought with and we will send the link straight back to it.
If the address itself is gone, our contact form and tell us what you remember: roughly when you bought, the destination, and the last four digits of the card. We will work it out with you.
our contact form and a person will read it. If you have an order, open the form from your order page — it carries the details with the message, so we can start on the problem rather than asking which order you mean.
We answer to the address you give us, usually within a day.
