maize full of worms

On the 26/09/2023 bought 5kg White star at SHoprite Bloed. I tried cooking pap yesterday and make porridge this morning. I saw a worm but thought it was just worm to my suprise found millions of them this morning when trying to make porridge for my babies. I had to discard the product as I cannot expose my kids to any health hazard. TRIED searching for the receipt but could not find it.

will never ever buy maize at ur outlest