Expired food

On the 19/02/2024 I purchased food from pick n pay Benmore and I eat my food only to realise that the food had an expiring date of 01/09/2023 I immediately called them to inform them they went and check the stock and found that it was expired. I’ve been having a running tummy since and they said they would call and check up on me and I still haven’t received a call from them. I think I will take this up with the NCC and EHP