Poor treatment of a good customer

I fell in love with a ring on the Sterns website (thanks to google advertising) and last week I went to Sterns Sandton City because I wanted to see the ring on my finger before I committed thousands of rand to buy it. Unfortunately they didn't have stock of that ring. The store manager advised and even typed an email for me to send to *** with the SKU number requesting that the ring be sent to Sandton City store. I really wanted the ring and even offered to put down a deposit as a sign of my commitment towards the ring. The store manager told me not to worry, and that in any case she couldn't take my money until the ring was in the store. I followed up with another email this time to the *** and for reasons unknown to me they didn't read my mail and they told me to go to the store. To my frustration and anguish, the ring is now sold out. This is very poor treatment of a client who wanted to buy a R50k ring.