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FAQs: My O2

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Number change

Hi I need to change my number due to nuisance calls

Extra charge of £6.65 on this month’s bill. Why?

Why have I got an extra charge of £6.65 this month

O2 has blocked sim due to someone pretending to be me

Yesterday I received a call from 02 asking is my phone was lost/stolen, I responded no and it turns out someone pretending to me had called up to report it lost.At the same time of the call I was receiving calls from a private number which when you a...