Humilation and poor management

Bad treatment, humiliation and not being compensated for the treatment on 25. Infront a store full of customers. A gifted voucher that had money on it then declined in store when i went to check at center management the money was off the card. Stood waiting with a cart full of groceries to be turned away and had to leave without the groceries drove all the way from athlone to tygervally and back to kuilsriver where i reside. Poor management and communication. I need expose this