Chocked on plastic found in a mash and cravey

On the 27August 2018 i bought two streetwise one at KFC Pretoria CBD as take away,The store experience was bad because their call number screen was not working and they do not call your order number when they are done with your order they just put it on the counter.Now as i was ready to dig in my meal in a taxi to hammankraal i chocked on a plastic as i was eating the mash and gravy from KFC. In the mash and gravey the was a plastic inside that i nearly swallowed.It was late and i was already in the taxi so i could not send the meal back at the store.I have pictures to show that plastic.What if i chocked and died in a taxi .KFC ready putting peoples life in danger.I spend R50 on a meal i did not enjoy due to kfc staff negligent