Charged for a non existent account

[Anonymous]

I received a bill yesterday for an account i haven't had for a very long time. I closed my account with you on the 13/11/24 **********, I have been charged £17.33 for a very old phone number ending in 6271 , account ********** , it's years since I used this, have I been billed for those years I haven't used this? If so can I be refunded?

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[MI5]

You can reach the Payment Management team on 0800 902 0217.
The opening times are:
Monday to Friday – 8am to 8pm
Saturday – 8am to 6pm
Sunday – 9am to 6pm

[Enlli]

Now a none existent customer. 😂

[pgn]