My family and friends all have 02 and we have 02 numbers so get 1000mins free for £5 a month, but just about everyone's thinking of changing to another mobile company, reason being that about 3 weeks ago we could not hear each other, if we did manage to say hello we'd be cut off mid sentence. It cleared up after about a week but it's happening again now and is just not useable. Tried to phone up about this but cannot get through. We're mostly in the Sidcup area. Has anyone else experienced this? It really is impossible to try to make contact. Apologies if anyone else has already started a thread on this, I'm new here and anxious to get to the bottom of this annoying problem. Thanks in advance for any replies.