Black down town plastic price a *******

I was at checkers in modi mall town called modimolle in limpopo last week. I bought food and they then sold me black plastic with no explanation of why this was so. When I ask the cashier why was checker using black plastic bag and not branded plastic bag dhe told me they were out of stock. My problem was not only was they no formal notice to the customer about the plastic, these black down town cheap plastic were being sold to customers at the same price as branded checkers plastic. I went on to speak to the checkers store manager about this. He seem to no understand that is was not correct customer service to first no provide notice about the plastic being out and also was not right that these cheap plastic where being sold to us at the same price as branded plastic. From my experience that day I felt the checkers in that town has no customer service and over and above *****s from the customers from selling cheap plastic for that price and I would not being back there for my shopping if I am in that town again. I do not k ow if checkers Corp is aware of their practise as it is lowering their brand value to people who have been then