For two years I have had a perfect signal in N22 7RY where I live.
However since July 2014 the signal has completely gone. O2 network
services say that there is a mains power issue with the mast at
Alexandra Palace...
Thanks for the info but I did raise a complaint on the 17th July. They
suggested using the 'TU Go' app but it's terrible at receiving calls.
I'm feeling very negative at the moment.