Total *******!!!

I bought my ring from Francois and exactly 4 days after the purchase the rocks on the ring started falling off and the ring changed it's shape,I took it in and was told the reason for the damage was because the ring had been resized,it was taken in for repairs and I didn't hear anything from them after I was promised to be contacted back after a week. After 2 weeks I contacted them and told them how unhappy I was with the service and the next day I was told the ring had been fixed and was ready. I went and collected the ring and just over 3 weeks after the repairs the same thing happened,the stones fell off again and the ring changed shape again and was skew,I contacted them again and I was told to bring it back and it would be replaced with another ring that was exactly my size and would not have to be resized.after taking it in I was told that they could not replace it and needed the owner to see it first and make a decision. After 2 weeks without my ring I contacted them again and I was told the owner would call me which he did. He told me that they could not take responsibility for the ring as it was my fault that it had changed shape and rocks falling off, he was very rude and abrupt and told me I would need to pay another R500 to have the ring repaired,this is after I spent close to R3000 to buy the ring that is damaged in less than a month of purchase. They fixed it the first time and acknowledged it was because of the resizing but a few weeks after they shift the blame to me. I currently do not have my ring and extremely disappointed at the service and treatment I am getting after spending so much on a ring that clearly isn't even worth the prize I paid for because it wouldn't even last a month.