Expired stock and so hostile customer service

I went to Engen Protea Glen Ext12 on the 14th of July 2025 I went there to buy 2x 500ml coke but to my surprise the cokes test was off and tried to look for expiry date only to find out that it was rubbed off. I then went to the garage the next day and met a lady by the name Angie who called a manager by the name of azaad who was extremely rude to me and told me that even if I can take it further nothing will happen as I complained for a small thing,called the councilor of Joe Gqabi who did nothing (Phelelani Sindani )instead was on their side. I am not worried about the money but health hazard that this whole incident oppose to other people and young kids .The owner came and told me that I am so personal and he is not running a ****a shop so he is not responsible for the supplies mistakes.