Okay ripping customers

I bought a 39 inche Hisense Plasma Tv, plasma tv stand and couches at Dobsonville Okay Furnitures on 7th September. It was a red friday sale.couches and tv stand where delivered on the9th of september.we were told that the store is out of tv's.on the 10th September around 5pm to 6pm tv was delivered.on the 11th September I was called by store manager Precious who asked if i received all my goods i confirmed yes and dt i was happy only to find out later that day when i unpacked tv and installed it .it had faulty screen.showed lines.my wife informed them on the same day dt we received tv and it had lines as if ink fault.i took it bk on the 27th September the new store manager says is physical damage and i will be charged.tv is not broken and when i plugged it i saw these faulty results.she says they check all goods.but this tv is not from Dobsonville the drivers confirmed that due to the store didn't hv tv's.im unhappy bcz the store pushes the blame on me as a customer i am to blame .the store and drivers are not to blame.i want my new tv or refund...my numbers Mr Mathe ********** 251