Unacceptable service from Clicks

I would like to complain about Clicks,I bought a microwave online last year in August Kambrook brand,for the past two months I have been struggling to use it as it works and sometimes it doesn't even if you warm the food for 30 minutes its still cold.On the 21st of June I took it back to thabong Clicks is sebokeng and I had to fight for them replace it and finally they agreed to replace it and told me they will ask for the microwave from other stores as they didn't have it and I will get it after 7 days. On the 22and the next day I received a call in the morning to come n fetch as it is working and I refused,3 hours later I received another call to say they got the new one and I must come fetch it which I did the sameday however the microwave was slow and today its not working and we cant warm up the food.Clicks took me for a fool and they gave me the same microwave,cleaned it up and put it in a new box.I am so upset right now as they didn't want to exchange it in the first place and all of the sudden they had the new but its still not working that means I am a fool and I never expected this from Clicks dissapointed.