You are being charged for this are you aware? Check your account. Just had a 30min conversation with O2 telling me they cannot do anything about it as it s a 3rd party company. They can't even stop any of these messages coming through. Call your mobile company they have a list of all the 5 digit numbers and their related Customer Services 0844 numbers. You then need to call Customer Services company and ask them to tell you how your number got added - and then if you have enough evidence it was not you ask O2 to refund you. Each of these companies need to prove that they confirmed they had the correct customer asking for this service. What does my head in - anyone can register your mobile number on a random site like this and you have to prove it was not you. Each text costs 0.83p - even the text to stop this costs you. Good luck, Angela