Eep,what do you do about prank calls? I called O2, and told them, the first guy said 'We can't do anything save change your number.' So I sighed and decided to set about getting someone that knows what they're taling about. I phoned back, to find someone that told me the same; curiously on telling her that that's quite simply not true, and unacceptable even if it were the case, she went to find this mysterious 'supervisor' that told her to 'fill out a form' to pass onto the Nuisance Call Team. What a dippy bitch.