We found maggots in our KFC

We found maggots in my Kfc just because we had bought this from the store and went on a road trip, Kfc deems there is nothing they can do except say sorry. because the meat was not returned for testing. we have complained with all relevant Structure from kfc and yet they are adamant that "SORRY" is all they can do.

They have all details and evidence of the KFC being bought at their franchise