Rotten White star maize meal

Good evening I am very disappointed with the white star maize meal i bought from checkers that i found rotten. I have been a customer for donkey years. Imagine on a Sunday around 18:00 wanting to make a quick meal for my children because i was not well , i open my bag of white star maize meal that i bought from checkers few days ago only to come across Margots while i was cooking and string like things. This is a health hazard. I am so dissatisfied