DSTV Decoder insurance still running after terminating DSTV subscription

I have been communicating on numerous channels to terminate my decoder insurance, but no response. I only realized I am still being charged for this after I got the renewal schedule for the next term. I have ended my DSTV subscription in Sept 2017 already but they still charged my debit order one last time before terminating thus resulting in me being in credit with them and them deducting my decoder insurance from the credit on a monthly basis. I would have guessed if you terminate your DSTV subscription they would automatically cancel the policy for the hardware insurance as well. Let's see if I can get a response from them from this review..........and after this they will still owe me a couple of hundred rands which I will probably never see because they would apparently not know how to physically refund a customer. I am so glad I have gone the Fibre internet and streaming route as this is becoming a disgrace.