Defective TV delivered

Hi Peter it's Mthunzi Njomba here. I got a delivery today of a Samsung Smart TV I bought on credit from House & Home, Greenacres Shopping Complex in Port Elizabeth. The Delivery Team took the TV out its box, connected it to the power supply and switched on in my presence. Then they read a Delivery Note which among other things asked if there are any cracks on the TV. One expected to see a crack like in a vehicle windscreen and there was none. Signed the papers and they. I noticed a black spot on the top left corner of the TV screen and it's a TV screen protective tape and stood up to peel it off. To my surprise, the black spot is not a protective tape. I immediately phoned the sales lady at House and Home and asked her to tell the delivery guys to return. This was all about 3minutes after they left. The lady said they can't. I took a picture and drove to House and Home to show the black spot. I told them I did not buy a TV with a black ink mark on the top of the screen, they must come and collect this TV. The Manager, Mr Jallal, told me, the black mark is a crack. I told him the Delivery form did not ask if there is a Black Spot or Area on the screen. How would I have known that the black spot is a crack if their does not ask about black marks or spots on the screen. Now he refuses to send his Delivery Team to collect this TV. This happened all within an hour of delivery. He tells me he is going to phone Samsung to come to my house to inspect the TV and write a report. He can't collect the TV. Can you please intervene here. I want this TV collected and replaced. I can't sit here at home with their defective product. Please reach me on ********** 056