Giving them 1* is being generous.... Awful, awful company who have messed up my credit score due to an error at their end and now I am paying the price for their complete and utter incompetence. Customer service is a joke, I have spent hours making calls, sending emails and visiting my local store to be fobbed off and told to contact a different team or department. O2 seem completely unconcerned about the financial and emotional consequences of their mistake. My husband will be leaving them too and I will be looking to complain as I am sick of trying to sort out their mess.