Absolutely disappointed with service

I visited the Sterns jewelry store in Clearwater mall on the 14/06/2015. Myself and my husband were looking at new wedding bands as we have our 15 year anniversary coming up. We came across a set of wedding rings for him and her as a set. The wedding set was absolutely beautiful so we decided that we would purchase the set. To my dismay I had left my Foschini account card at home but we asked the sales lady if we could come back the weekend of the 20/06/2016. She said that it would not be a problem and my husband asked her if she was sure that the wedding set we wanted to purchase was the price that was advertised in the window which she responded to as being correct. On our return to the shop on the 21/06/2015, I told the sales lady that we were there to collect a his &amp