Terrible service

Got Dstv explore ultra on price lock. Almost a week after installation, issues started. Constant issues with E48 error message (no signal) after load shedding. Installer advised the issue is with the decoder and that he has had many other clients complain about the same thing. Multi choice says it’s the installation. Took the decoder into the walk in centre twice, same issue. 2nd time received a new decoder, same error message. Called the call centre and spoke to 4 different agents, holding from 35 to 45 minutes on the call, no resolution. A week later, no call back even though I was told that turnaround time is 24 hrs after escalation to contracts department. Installer has disappeared and no assistance from Dstv to get this resolved. You have a responsibility to uphold your end of the contract and send out another installer who can fix the issue or get me out of this ridiculous contract that takes my money with no service provided from your end.