Food poisoning

I asked my husband to buy me all brans yesterday, He bought them yesterday with weetbix at Usave 187 Rissik Street Johannesburg, this morning I ate them and I started feeling a bit unwell then decided to check the box because that's the only thing I had so far, only to find I was correct expiry date is the 06/06/2021 I have proof of purchase that I bought them yesterday on the 9/06/2021. I only need to attach them somewhere.