Hello @Anonymous,
This must be so hard for you... I'm really sorry for your loss.
As they said, the O2 community is a group of customers like you and you need assistance with your account. Please, follow their advice and find the best way for you to get in touch with Customer Service here. They can help you by checking and raising a case to investigate further if needed.
Keep us posted, if possible, in case there's anything else we can do for you.
And welcome to our community. We are here for you 
Posts: 83,136
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@Anonymous wrote:
I was given a credit of over £260 a few days ago then I got a letter from the complaints dept saying that my bill was not £267 but £509!!!! I’m livid!
I can imagine why that would do thst
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How did they work that out?
