Cheaper TV at a high price

I have been to game to purchase a Tv and that took forever for someone to assist.I waited almost 45 min.I was told that the store room is locked and the person went for a break.So what a customer must now wait.I did wait and i purchased a 55\ sinotech led at R6990 and was told its a good quality and play all types of movies from usb which is a lie.Picture quality is only 4000:1.I waited so long at game and when i got home and connected the tv and to only find out its such a bad product.People out there dont but the sinotech 55"led tv its bad."""