I want my refund of R27780

I had a tracker from the above-mentioned company and a few days later I started experiencing problems with putting the vehicle on (ignition), and I decided to take the vehicle back to the dealership via a towing company from my house. They ran a test and identified that the tracker was installed in the wrong spot to extent that it was draining the battery, then informed Cartrack about it so that they could send out one of their technicians, and unfortunately, that has never happened. Then the dealership technician removed the tracker device without changing the battery 🔋 and my vehicle was fine. Please note that I didn't have an active tracker device and didn't experience any issues before the device was installed. To cut the story short, I was charged R27780by the dealership, and told me that Cartrack must refund me since it was their device. I continued paying the monthly premium hoping without cease hoping to get my refund, last month I decided to dispute the debit order of R180 and I've been receiving millions of phone calls, SMSs and email just because of missing one payment. I told them that they can take the R180 from the money that they owed me and still refund me.