SPAR MADADENI poor service

I went to SPAR Madadeni on the 15/06/2024 around 9am, to purchase small thing and I decided to purchase bubble cum. when I reach the till point, I was informed by the cashier that this product is not listed in the system and it's not the first time they are doing something like this. I had to wait for more than 30 minutes for the product to be book in the system. example if u can work in the shop now and buy Nescafe coffee price will be R105 but in the special catalog R85. I had lean to check every item. I am not happy with the services I receive.