Bad service

Even 1 star is to much to give them. Over a month I've been struggling with them. I need to get a refund for a cancelation fee they charged me after I told them listen cancel the invoice I want to cancel my contract not reinstall my device. Keep in mind I did cancel it 4 or 5 days prior to my debit date, they told me it's canceled but it clearly wasn't. They told me it would be R870 and that's the invoice I canceled. In the end they charged me a reinstall fee of over n R1000, they charged me R2700 to cancel my contract and they took another R300 for their monthly fee. I phoned them and they said fine in 7days you'll have your R1000 for the reinstall back. 7 days is gone now but nothing yet. I phoned them and explained the story, I even spoke to the team leader but then suddenly they tell me my credit note has not been put through yet so it's going to take 7-14 working days. Seriously cartrack what type of service is this. There's no words to explain how unhappy you guys are making me. Why do I have to fight so many times for one thing and worst of all it's not even my fault because I did tell them to cancel it and I have proof that I asked them. Just do my refund please, I'm tired of arguing and keeping calm the whole time. Worst part is I was saving that money for my mother's birthday this weekend but now I have to wait 7-14 working days again. It's not fair please fix your mistake.