Dead fly inside my cheese

I bought a block of Goida 800g cheese at Checkers near where I live and un beknown to me was a dead and squashed and full of blood fly INSIDE the sealed plastic. I didn't know if I should scream from anger or cry from disappointment. One thing that I am sure about is my shock. I can't help but wonder the level of safety protocol and cleanliness that are in place at C*****. Whoever packed the fridges at Checkers wouldn't really think twice about checking for forein things in the cheese BUT C***** should never ever have anything lime this slip. It is a health hazard and very un appealing. Now the shops are closed and I can't cook the potato bake that I had planned to cook. I am highly upset.... Extremely mad and disappointed!