I was sold a damaged tv for R15000

My husband and I brought a tv online from Makro on the 6th of August 2018. The tv cost R15000 and we paid cash. We were told that delivery would be made 2-5working days. We always received different messages whenever we called to enquire about the delivery date. We had canceled all our plans for the week as we were told that delivery would be made-we would phone and follow up each day and we were always told a different date. We then asked them if we could go get it and they accepted. We were handed the tv in the box and drove back home. Upon carefully opening it at around 12pm and setting it up we realized there were a few lines on the screen when we put it on-it didn't look like the screen was cracked, it just had lines. We phoned Makro immediately and told them that this tv has a problem. The first male was willing to help us and stayed that we could get it changed as he asked if someone showed us that the tv was in good condition before giving it to us, we said no, it was already in the box. He then asked us to speak to another person who asked us to send him pictures via his WhatsApp-we did, he said that the he could not change it and we would need to take it in for service. After phoning several people at Makro-they eventually collected the tv from us on Monday the 13th of August. After the tv had gone in for repairs we were told that we had to pay R19000 to get the tv fixed. We told them that that was ridiculous because the tv cost us R15000 and how can we pay more than what the tv cost. It was a horrific experience. The customer service is very poor with no follow ups. No one showed us the tvs condition before we took and therefore assume that it was already damaged from their warehouse. All we want is a brand new tv that we paid R15000 cash for.