Ring Quality

Good Day

Unfortunately we are now forced to go to social media to get feedback. My husband bought me a ring on 5 March 2019 for my 30th Birthday. After 3 weeks the colour of the stone changed and it wasn't shiny anymore. I went to the American Swiss Branch in The Grove mall where he bought it and they said that i need the slip before they can assist me. Not having the slip with me because it was a gift i have asked my husband to take it back. When he eventually had time to go to the store they said that they cannot assist us because we did not bring the ring back in a certain time frame. Telling them that i was there within a few weeks after receiving the ring they agreed to send it in. It took about a week when they called us to come and collect the ring. We asked them that should it happen again what do we do. They assured us that they will then refund or replace the ring. Not even 1 week after i got the ring back it did the same. My husband went back immediately and they said that they will not be able to assist us further because we did not care for the ring and used chemicals on the ring which I definitely did not do. This is not a cheap ring so i took it off whenever i was using soap or cream etc. My husband then got in contact with the area manager who said we have to take the ring back to the store where they will then collect it and send it away for assessment again. So now we have to go back to the store for the 4th time. Unfortunately we cannot just drive up and down to the store as they wish. This is now almost 4 months later and i am still sitting with a very expensive ring which looks like n R500 **** ring.

Can someone please assist us