I want my refund

Extremely poor customer service at @Game in Galleria Mall (Amanzimtoti)!!! Bought a Defy microwave 2 months ago, after 2 weeks noticed a fault that it doesn’t warm anything for a couple of hours then it will get back to normal afterwards. One day I got frustrated where I wanted to use it in the morning but it wasn’t working, came back from work later to find it was working just fine. Decided to take it back to the store because it was faulty, the service was very poor. They said they will keep it for 21 days for the technician to come and check the issue and they will call me for updates. After Some days of no contact from them I decided to call Defy and get more information about this, they said it only takes 3 working days for this and the funny part is that there is no reported issue under that store which means Game didn’t do anything about this, they kept my microwave in store for nothing.

I went back to the store and told them that Im going to another store to buy another microwave while you are waiting for a technician because I can’t be living without it, the reason why I bought it was because I needed it, they said “go ahead we will call you when we done and you will decide what you wanna do about it, either exchange or a refund”. After I bought a new one they called me saying they are done I must come to the store. I went there today with the slip of new microwave I have bought, now they saying they can’t do anything about this because the appliance is not faulty. So now I should have 2 microwaves for what?? I told them that you won't see that fault in one or two days, this thing happens once in a while and it’s irritating cause it does this when Im in a rush mostly. I'm staying in Empangeni and I'm wasting my money for petrol and tolls all for this unnecessary *******!! @Game and @Defy please tell me what should I do about this because I'm very irritated, I'm even thinking of taking back the fridge I bought together with the microwave too because now It's like the support I'm giving you'll is for nothing. I want my refund before I write the story about the store on all the social platforms!!! I know my rights as a customer.