INCORRECT BARCODE AND PRICE ON INCORRECT ITEM AND VERY BAD SERVICE FROM CASHIER AND STORE MANAGER

We recently moved to Ottery, and started changing our shopping centre's. We usually shop at Checkers, but since moving to Ottery, we now started shopping at Pick a Pay ottery hyper and Pick a Pay Lotus River.

I bought an item with the incorrect barcode on it, (not knowing that it was the incorrect barcode and price given). As a customer I wanted the item that i bought as the price that was listed on the item. I was refused by the cashier who's name is Domonique and the store Manager, Emraan. I was subsequently given bad customer service by the Cashier, who was insisting that nothing can be done about the situation. I then requested the manager, who acknowledges the mistake and error of the store, however he cannot give me the item with the price that was it was listed on.

I've never had such a bad experience from a well known store. I've taken a photo of the item with the incorrect price and bar code on it.

I might need to change back to Checkers again.