Poor service regarding a refund

Discovery insure was one of the best insurance companies that I have ever had contact or dealings with. I was completely impressed by their cover and communication and encouraged all of my family members and friends to switch insurers, three of which recently took out new policies because of this recommendation. However, at the end of April I cancelled by policy because I was selling my vehicle, I was told that so long as my dq track device was removed within 31 days of cancellation there would be no further fees that I would be held responsible for. Ten days later the tracker was removed and I was happy with the service I had received, fully considering other insurance and investment policies. Then at the end of May over R1000 is removed from my account as a penalty for not removing the tracker on time which is total ******* because as I said it was removed within the 31 day period. I phone to find out and I'm advised that I now need to go out of my way to provide documentation because their finance department is "iffy" about giving refunds. This is hilarious because apparently they're not "iffy" about *****ing money which doesn't belong to them in the first place. After the documentation was provided I get told my refund should be processed in 48 hours. Here I sit 120 working hours later and still no hint of a refund. Totally unacceptable that I have to now put other payments on hold because of this incompentce but naturally you phone to find out and get told that there's nothing more that can be done and I need to simply be patient.