Monthly payments being taken from my account for months yet no active subscription

Hi, I keep getting monthly charges of around £21 by adobe for something that doesn't exist. This has been going on for months now & there's absolutely no way for me to cancel it through my bank & my adobe account has no active subscriptions or anything relating to a monthly charge so these charges keep occurring. I haven't been a subscriber to adobe since last year, and I had made sure all my trials etc were cancelled. How on earth do I go about contacting them about this please? 

Stella, thanks for posting your question about unknown charges to this public discussion forum. I can confirm that your account has no active subscription or membership. Please make sure you are signing in under the account that has the active membership to complete the steps listed in https://adobe.ly/41qpFYE and cancel the membership.

For additional information on the causes of unknown charges from Adobe, see https://adobe.ly/3CPW4yt. ^JW