shocking service

My wife bought a ring from Shirley and was told if she needed a different size she must go to Cresta as they are closing down. We went to Cresta today and were told that we should never have been sent there as northgate can do exchanges and Cresta does not even have a size northgate does. They then called northgate and spoke to Ithemba and explained everything to him. We got to Northgate and were told Shirley is out on tea time and will be back in 5 - 10 min. It is now 30 minutes we are waiting in store for her and no one can assist us. We have wasted an entire morning on Firstly being given incorrect information and sent on a wild goose chase and secondly being made to wait for so long with no assistance. We will never come here again