No guarantee on this product

May 30th 2020 we bought a TV at GAME Paarl. The TV was meant to go to a family who is struggling financially. On June 29th the lady who received the TV told us it's not switching on, the LCD is completely blank with no sound. We took the TV back to GAME (July 1st) and we were told that it needed to be sent away for assessment. 17 Days later we get a phone call telling us that it will cost us R1200 to repair the TV, seeing as it has an ****roach infestation. Upon phoning the company who did the assessment, I was told by their technician that this TV was only booked in with them on July 14th. So, this TV have been kept in GAME's storage for 2 weeks before it was taken in for assessment. This TV is still under warranty, but according to GAME management, I have no warranty left on this TV because I gave it away to someone and now it's got some infestation inside. What guarantee do I have that this didn't happen while it was standing in their storage for 2 weeks? And how does a warranty go null and void because of an item given to someone else? I want this TV repaired or replaced.