Very bad customer experience.

Bad customer service Went to game Vincent Park, East London yesterday, 2019/11/30 to buy a Garmin. My hubby saw a Ryoby grinder combo for R999. He was excited since he need one and it's a good price. He paid at the till not noticing that he was charged R1499 for the grinder combo. I only noticed after arriving home. So today we went back to Game after church. We explained to the lady at the counter. I went to get the price for her only to find out that it has been removed. She then called the manager. I showed him where I saw the item with the price. He first said it's impossible since the combo was never on special maybe it was another combo. (I'm basically lying) I said to him it was there.. Maybe someone removed it. I asked him where is the person working in that dept. He said the person is off. And there was no one working there yesterday as well. I was stunned. I told him someone must have removed it. He can maybe check the camera or ask the other staff. He said he can't do that since they have 135 staff working there and it would be impossible. I then said he must check the cameras. Well the store doesn't have any. And he can't give it to me at that price since I don't have any proof. He then went to a room. Came back after a very long time. Apparently it was a black Friday special. But it was only for Friday. So first the combo could never been on special and now it was black Friday. I asked him is there someone else who I can talk to. He referred me to a lady called Unathi, who basically told me the same story. They need proof, so I guess I take pictures whenever I buy something as proof. I'm not sure what proof I can possibly give them. I must say it's the very first time I came across something like this. So I will be taking the Garmin back as well. I cannot buy from a store that makes me a **** and that doesn't live up to their principles.