Cartrack the biggest ****mers

Cartrack is a big ****er they will debit your account even if you have cancelled the contract after it elapsed and when you reverse the debit order they claim you owe them and after all they will debit twice on the account without notifying me so I don't recommend anyone to join them. I don't understand how they will contue running a debit order after contract cancelation this is total unfair treatment and they are threatening to blacklist me how do u blacklist someone who has cancelled a contract and had rightfully reversed a debit order which by right was not supposed to be debited in the first place. Do not join cartrack they will even debit at any day whenever your account has money