pick n pay Waterfront

I ordered sausage and 2 chocolates from the Waterfront branch, a slab and a small one. I paid R156 for all 3 items yet they only delivered the chocolates only. Until today I have not received my payment. They told me that sausage is out of stock but why does it not say on the app instead of making clients pay for something that's not available. I want my money, I don't work to give away money to them.There was not even a decency to contact me after I called them several times