Found hard plastic and moth

Hi i went to mc donalds in san ridge midrand, at around 23:45 bought 2 Burgers , 1 mac feast n 1 chicken peri sumthing then when i got home started eating my chicken Burger when i was halfway i bite into this hard thing, then i opened the burger the i find a hard plastic and a flying insect i still dont no wat its, was sick until morning, then next day went to mc d then spoke to tshidi the manager, n spoke to her n she gave me the boss's number , his name is david mo***eng, i phoned him then he said he will get back to me on monday the 18-04-2016 n he did not. So now thats why im here now, i have the picture.