Dissatisfied customer

I went to Defy Sales Office, Polokwane to purchase a fuse for a microwave almost 3 months ago. When I arrived there I was sent to an advisor who said I need a magnetron and the fuse because the magnetron is most likely the part not working. He was very arrogant telling me that I'm not a technician and because I don't want to pay I'm opting to buy the part where as I have no idea of what's wrong with the microwave. I then bought both the magnetron and the fuse but when I gave it to my husband he found that the fuse was the wrong one and said he will return it which he did. The next day when he r rechecked the magnetron he also realized that it's not the right one. He went back to Defy and was told that he was gonna have to bring my ID copy and proof of bank for the transfer to be done which we did. He was met with the same arrogant advisor who told him the same thing that he is not a technician and because he doesnt want to pay someone to fix now we bought wrong things. This was almost 3 months ago till today waiting for the refund. My husband has been going there and calling them but still they just kept promising that we will get our refund. Very dissatisfied with the service