Bad fast food gave me diarrhea

On the 27th of June I bought "small curried vetkoekkies" at SuperSpar Waterfront Port Elizabeth at 6pm as I were in a hurry to drive through to Port Alfred. At 5am on the 28th of June my stomach started getting severe cramps and I now sit with a bad case of diarrhea. I cannot believe that Spar sell food that gets people sick. I'm not happy as I not so long ago gave you a good review on Google maps and might even change this if nothing is done.