Cartrack is a laughable company, don't so business with them

So in May of 2018 car track installed a fleet management system in my car only got it to stop working 2 months later, i then reported it to a marketing consultant that called me to sell me their happy button, the consultant promised inform their customer care department so they can give me a call, needless to say, that didn't happen.

I then endured 5months of paying for a service that I wasn't receiving, so in November of 2018 I them decided to reverse their debit order, soon after, a lady from the accounts department called and we discussed this matter, I then told her that I want to cancel because in my opinion they violated their contract, she promised to get back to me and she didn't, I then continued to email Car track and refused to pay for their service, insisting that they cancel my contract since they aren't servicing me as per my contract, every consultant I spoke to promised to get back to me, needless to say, none of them did, so a few months back I spoke to a gentleman in their fleet department who advised that the GPS on my tracking device is faulty and needs to be repaired, car track refuses to do so because my account is in arrears, I refuse to pay them because I wasn't being serviced during that period, I then spoke to a team leader in the client services department who them promised to look into the cancelation of my contract at zero cost, she didn't get back to me on that, I had to call in and I was told that it won't happen because I failed to call them every month to inform them of my faulty unit, wow cartrack is a laughable company, I don't advise anyone to do business with them, what a joke.