Poor Workmanship

We purchased an Emerald Ring with diamonds at American Swiss in Gate Way, Durban, November last year. May month the emerald fell out, where,I dont know, only realised when I got to work. We are relocating back to Cape Town, and all my documentation and stuff is still in Durban. I travel to Durban every alternate weekend. I did not have any proof that the ring was bought at any store, hence why I did not take it in to American swiss in Cape Town, and waited until I was in Durban, to get the POP. Jill who was assisting me instore, told me that I was out of my warranty period,by a couple of days,and that the manager would call us. Up until today no call. I was again in Durban this past weekend, went to American Swiss,Saturday 06/06/15, dealt again with Jill, and just said Sorry, I thought my manager called you!!REALLY!!! The supplier dont have stock of the Emerald, and she will be requesting it back,and sending it to their quality?Tuesday, & still no communication.Can any1 from American swiss get back to me??? We leaving DBN end of June and would like to have my ring back before that, as I was also told that I need to get my own courier to pick up the ring and drop it by me.