Poor service very frustrating

I gave in my paid up smart tv (under warranty) to be fixed on 27 of January2016. I was promised a 21day fixing time. A month went by without my tv, i cald d store & even spoke to d supervisor & employees several times Dey kept promising me to call me bak just to get rid of me. I drove der several times as well n told me its wit d technicians den suddenly dey changed d technician. I den cald jd group to complain same story we will investigate and col u stil nothing. I felt undermined and I thought a customer is very important. On d 25th of February i did my regular check again at d store i was now to get another tv, i told dem my tv was a smart since now d model was gone i was forced to downgrade to d led tv because i ddnt have d money to ad on top. I feel robed because I wasn't refunded wit d same tv or quality even though i wasted my petrol, airtime and dstv February amount never mind my feelings and frustration this has caused to my family