Disappointed with game Greenacres

Hello I’m Lumanyano Recently bought a Samsung Microwave with game Greenacres in port Elizabeth had a problem with it and I took back because it still under warranty it was fixed but a couple of weeks later the same problem happened then I had to send it back to game greenacres now I am hearing that that it won’t be fixed even thought it’s the same problem and the microwave it is still unde warranty the repairs company which they use B&L appliances is the company that declined my warranty or void my warranty I have never had these issues with LG brand worse part I recently bought an 86 inch in the same game in Greenacres in port Elizabeth i am now worried if I would be treated the same should something happen to my to now