Dissatisfied service - customer care

Worst customer care service ever. Can't get ahold of them over the phone. Every time I tried to contact them the call will drop. I have sent multiple emails to them asking to cancel my policy, only for them to come back to me stating I need to settle the contract fee which I did not even know I signed. A week after I first tried to make contact they called me ... meanwhile I already traded in my vehicle, for them to say I need to pay for a new device to be installed if I wish to continue with the policy. If you contacted me after my multiple emails before I traded in my vehicle then it would have not cost me R850 for a new device.