This is a scam number that phoned me after i took out a contract phone from the Carphone Warehouse. They claimed to be from O2 going on about my insurance. They were asking too many personal questions which i did not give the answers to, instead i queried it and they hung up on me - i phoned O2 and they told me they had had other complaints from people receiving calls from the same number. They said it was nothing to do with them and it was a scam. DO NOT GIVE THEM ANSWERS TO PERSONAL QUESTIONS!!!!