Disgusting maggets found in chicken

I live in the North and not having water for a few days, visited family in the east of Johannesburg , lakeside , and thinking that all food will be cooked with fresh water and will be healthy I decided to buy a cooked chicken from pick and pay in lakes field.

When I brought it home , to my disgust The was flies and maggets in the chicken.

I called the store and spoke to Jimmy, he said he will make a plan to fetch the chicken and he will take it up with the vendor. This is a serious hygiene issue and I have 2 little girls who could have opened the chicken and ate it. I then phoned the customer care line , and spoke to Zama who said she has escalated it to Head office and they will sort it out ASAP,

To date no call, I am really disgusted and afraid of this hygiene issue,