Frustrated and disappointed client

Bought a fridge on the 20th of December and was told not to switch it on for about 5 hours after delivery. Delivery came and I only managed to switch it on on the 21st of December then I saw that it had an issue plus it makes a horrible load noise. Went back to fair price and they asked me to call defy service centre. After a few days later technicians came and found out that there’s an issue with the door and told me that the fridge needs to be replaced, that was on the 23rd of December, since then I’ve been calling asking about when the exchange will occur and all I’m being told is that my job number of *** shows that it’s been logged for an exchange and that’s all no body knows when the delivery will take place, finally last week Friday I was given a number to call the lady by the name of Logan but she never answers her phone and the messages I’ve left are not responded to. It’s so frustrating and disappointing, feel like I wasted my money and should’ve gone with a different brand, NEVER BUYING FROM DEFY EVER