If you go to My Tmobile and long in - then click on "profile" on the upper right of the screen. Then click on "Blocking" on the left. Make sure the switch for "Block International Charge Roaming" is set to on.
Originally Posted by
rrgg
I guess if you're visiting multiple countries getting a local SIM isn't that convenient.
I understand your point, but the offer reads, "If you're not in a country where international roaming is included, you'll be able to use calling and messaging services, but data will be turned off by default." Wouldn't you have to override this to start getting charged?