I have been charged monthly for a service but I don't have a vehicle

I have been charged monthly for a service but I don't have a vehicle. It was ****** and never recovered but CARTRACK still debits my account for a service I'm not receiving, furthermore I have been charged by my bank for failed debit orders by CARTRACK because I did not have funds in my account for the debit. I called the accounts department and the said that someone had accidentally added a happy button service on my account that I did not know about, they have also been harassing me with emails and whatsapp messages about payment.