Never gets back to you for a burned airfryer

I have always ordered from one deal a day with no issues. But when I ordered a I ordered the following: 1x 4.5L Air Fryer @R500 Order Number *118548 *** The air fryer burned, I have tried many times to get it returned or refunded or replaced but their customer service just don't answer at all or do not even respond.it has been months already