Debit Orders on cancelled services

In May 2021 I sent an email request to cancel beame services, as I was advised it can only be done via an email. In June 2021 I received confirmation that the services have been cancelled with immediate effect. To my surprise they kept debiting my account and since then, I sent out numerous emails requesting for the stop and when I call them, I never get to speak with the right person, each party will always transfer me to the 'relevant department'. Now I get told that I had two cars on my profile (one TBC registration and 2 two my previous car registration both referring to the same car). How do you have a car with TBC registration since 2016...unbelievable!