I bought a new EE sim card but didn't activate it when I was in the UK. Then I bought a Talk &Text Pack online.
Now I am abroad and I cannot text, call or browse. When I try to call it says that the number is barred. How can I activate my sim card? Incoming calls are directed into a voicemail, and although I am active I receive a text that somebody tried to reach me. They can also text me, but I can't.