Hi, everyone. Before you do a contract with o2, please check the o2 reviews . I had a contract with an o2 network, and our contract deal was £35 a month, but o2 was charging me £65 a month. I contacted o2 costomer Service 3 times, and they said, "Oh, we are so sorry, we will put cap on it ." It's will never happen again. If you put a cap on , and then if you make a call abroad, even by mistake, it's not go through because you have a cap on. That's what the cap on will do. The next month, they still changed me £65 , I went to the store because I was tired of calling online customer service, and I thought they would help me to stop this. In the store, they told me the same things. Oh, we are so so sorry about I will put a cap on right now, and it's never happened again, and I said I already have a cap on why it's happened again, the man told me that they didn't put it cap on properly. The next month, the same things again 65£ charged, and I went to the store to the same person. He was looking to his computer for about 10 minutes and finally he said that he couldn't do anything , so I decided to cancel my contract which I did and I'm receiving a lot of emails and letters from o2 . They are saying the next step will be court, and I'm waiting for that to happen because me and my team will take o2 company down. We have so many proves that o2 company is always charged over amount. About 10 old age people we have, which is easy to overcharge, and o2 charging them, poor people don't even know. Many more people like this we have, which has overcharged . So we are waiting. What will o2 do if they don't do anything, we will take action, and if me and, my team, are successful in this process, Then that's what we will do for leaving to help everyone who gets scams by the network providers.