Incompetence and frustration when dealing with cartrack!

If you want to be constantly harassed for payment, after you have made payment then deal with cartrack!!! They *******ly debited my account, after I had made my usual monthly payment and for 2 weeks I receive constant messages to say I am in arrears . I have sent over 6 messages responding to their demands showing proof of the so called outstanding payment but all that happens is I get more messages saying I am in arrears. I have never dealt with such incompetence and the sooner I can end my contract the better. If you want to have constant frustration , irritation and incompetence then get a cartrack contract !!!!