Rotten peppers

So on the 14th of July, which was a Tuesday, I went to Maponya mall pick n pay and bought ingredients for a salad.. . We bought peppers and other ingredients. Come Sunday when its time to prepare food, we open the peppers and they were rotten and had living worms inside them. I complained on Facebook and Twitter and they requested my details which I gave them. They then sent an email on the 30th July that they are investigating and will get back to me.. Since then I have not heard anything from them. The email was sent by Lorna