Unemployment made me Cartrack's enemy.

I have never had to do shout contests over the phone like I have done with Cartrack. I am writing this with the calmest mood because I have gotten exhausted now. All the years with Cartrack have been good up until I lost my job. I constantly requested for the account to be closed, of which that was not done in time and in return I was charged. I attempted disputing as I had to been charged to no success. I ended up agreeing to paying off the full amount including the cancellation fee. The consultant who assisted me on that specific day offered me a discount on the outstanding remaining fee given the back and forth I had gone through. 3 months later I am told the account is in arrears because of the discount I was offered. I DO NOT KNOW WHAT CARTRACK NOW WANTS FROM ME HONESTLY. Even went as far as debiting off the amount from my account which I did not authorize. At this point it I do not know when this nightmare with Cartrack is going to end or what I should do at this point.