If I could give O2 no stars I would! I've tried to cancel my contract since the beginning of October, I've send the brand new phone back unused and unopened. I've spent countless hours on hold waiting for someone to help, the advice and help I've received is the worst I've ever experienced! I'm being sent threatening letters and emails constantly to make a payment for a phone I've not had since the beginning of November! I've made so many calls and have been reassured countless times of the numerous administration errors made. I will now have to seek legal advice for a cease and desist because I own you nothing at all! Con artist and scammers!