O2 Customer services telephone number UK?

Hi Can anybody help me? I'm looking for O2 contact phone number. I've recently bought a new mobile phone and I'm going to buy a mobile insurance. I have a lot of questions about how to get it, how mush does it cost and other. Need live person from O2 customer support to explain me everything but... show more Hi
Can anybody help me? I'm looking for O2 contact phone number. I've recently bought a new mobile phone and I'm going to buy a mobile insurance. I have a lot of questions about how to get it, how mush does it cost and other. Need live person from O2 customer support to explain me everything but couldn't find number. If you know some numbers, landline contact O2 is preferable.

Will be very grateful
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