Poor customer Service and Poor product quality

I am writing to formally complain about a wedding ring I purchased from American Swiss Sandton. I am extremely disappointed with both the quality of the ring and the service I have received.

A wedding ring is a meaningful and long-term purchase, so I expected much better quality and customer care from a reputable jewellery retailer like American Swiss. Unfortunately, my experience has been frustrating and upsetting. Stones fell out. Considering the price paid and the reputation of your store, I expected a product of much higher quality. I was refused assistance when i returned the ring for repairs. The QA department came up with ridiculous feedback which i am not accepting.

The ring is still in their store.