Expiry date

Good afternoon I would like to express my feeling about the experience I had with Checkers Hyper Liqour Store at Retail Park Boksburg; I bought 6 packs of 440ml Brutal Fruit on the 30th of May;After drinking 5 cans I started vomiting and my whole body was badly itching and I took the remaining can to check the expiry date that's where I realized that I have been sold expired alcohol;I am so angry and disappointed cause I couldn't understand a big store like that can keep old stock in their shelf without even checking.When I went back even worse the person that I spoke to a eems to careless what he did he did call one of his staff member to go and pick 1 from the shelf and that guy tell him the expiry date was exactly the same as the one I did tell him; I did show him a picture with the same barcode and expiry date the less he could was turn me back home to bring the last can and the slip; He did not care about my health and he didn't even apologize to show that they do care about their client; I am so dissapointed I need Checkers to take their staff to customer service trainings next time they must know how to deal with issues like this; I am sick as we speak I need this matter to be taken into consideration as I fee like I have been mistreated and left to die.Unfortunately I don't have their names cause they didnt wear Name badges.