Roaming rates are not covered by EU regulation when travelling by air or sea. To avoid unexpected roaming charges while on a flight or at sea, consider putting your phone in ‘flight mode’.
‘Flight Mode’ will disable your voice, data, SMS services, as well as Wi-Fi, so don’t forget to take your phone off this mode once you have arrived at your destination. Also remember to check that ‘Mobile Data’ and ‘Data Roaming’ are switched ‘On’, so that you can use your data services.
Once connected to such networks, you will receive a notification SMS informing you of the rates. Pay Per Use data charges have an automatic €50 cap. Upon connecting to a roaming data service and upon reaching €40 of roaming data usage, you will be notified via SMS that Your mobile data will be stopped upon reaching €50. You will also be informed that you can Opt-out of this capping by sending “OPTOUT” to 50700295. This will set all your future roaming data usage to unlimited and without capping. To ensure that future roaming data usage would be capped again at €50, you should send “OPTIN” to 50700295 at your discretion.