Poor customer service

It's been 3 weeks now without Xtra view due to error 143. Call center agents and their supervisors are all useless. They advise me to take it to the nearest service center, they didn't saw anything wrong and I got an installer, it only worked one day. He said the problem is the new system the service provider has. I phoned the call center again, the said I must get another installer. I already spend more than my subscription which is unfair. Poor customer service.