Anyone know this UK phone number 07501 222298?

Some company phone me wanting me to reclaim bank charges, I politely said no but they wouldn't hang the phone up!! Over 10 mins & every time I try to make a call on MY phone this bloody man kept saying hello will you talk to me now? They're still on the line and I can't make a phone call because they... show more Some company phone me wanting me to reclaim bank charges, I politely said no but they wouldn't hang the phone up!!
Over 10 mins & every time I try to make a call on MY phone this bloody man kept saying hello will you talk to me now?
They're still on the line and I can't make a phone call because they won't hang up!!

HEELPPP???
Update: Thanks everyone they've finally hung up!
I'll see if BT can block the number
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