Pathetic service

I bought a TV a few months ago from the Jet Mart in Ga-Rankuwa and before even 3 months the TV doesn’t work anymore. I took it back for repairs end of August but till today the TV isn’t repaired or replaced. I emailed the customer service got a reference number but till today I haven’t received adequate feedback. According to the store manager they filled the wrong paperwork and she isn’t assuring me of anything. All this time the TV is sitting in the store while I told it’s gone for repairs. Friday the Jan from the store calls and says I must come pick up a new TV on Monday 26 November 2017, on my way there I’m called and told another story about reference numbers and told they would call after an hour it’s the 28th I’m still waiting for that call. I call the customer service for feedback they tell me they have escalated the matter to the regional manager but no one has called. I just want my money back, I’m sick and tired of the run around.