O2

For the past few days I'neen getting flurries of texts: "Thanks for activating Visual Voicemail. Note: if you have data turned off, or can't get data coverage, you'll need to dial 901 to check for messages."This suggests something wrong at o2's end. ...

In the past I've recieved text questionnaires from 28484 along the lines of "Overall, how satisfied are you with the quality of our network" and replied appropriately.I'm unable to reply to the most recent of these - I get "message not sent - phone n...