David the Idiotic Manager at Gateway with Nokwanda the useless Cashier !!!

My Family & I visited Jet Gateway to make some purchases for a Special Function we will be at tomorrow. Amongst the items purchased were a pair of shoes, that were 2 different sizes, which we only noticed once home. The other was an incorrect belt size. We had to drive all the way back I order to ensure they give us a pair of shoes that are b9th the same size and the correct size belt. The Cashier Nokwanda does not check and gives back the incorrect belt. We didn't think to check the packet again as it was Nokwanda that also cashed for us the first time. She couldn't be that stupid that she made the same mistake twice. However we otherwise was proven to us as she did not check and just repeated the error of not checking what she's doing. 2 trips already made and fuel wasted and now with wrong items. We call the store, Simphiwe assists but says he will call back after speaking to higher management whose name is David. David did not even have the courtesy to call back, he used Simphiwe to do the dirty work and be a messenger to say there's nothing we can do. We will just issue the staff with a warning. Absolutely zero care for customer service, *********** staff and absolutely pathetic management. Someone really needs to completely change the staff I this store or provide them with some sort of training.