Debit card payment

Hello, 
Today (11/07/20) a payment of £79.99 has been taken from my account for a VPN using my debit card. I have never ordered or used a VPN and have definitely never disclosed my debit card details, so my question is, how has this payment been taken. 
I will be taking this matter up with the fraud department of my bank but in the meantime I would like to request that you sort the matter out at your end too. 
Many thanks.

Hi Anthony.
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