Grossed Out pass the point of return

On Monday 2021/06/03 late afternoon I bought a Moya Pie from a reliable chain store in our area as part of our daily shopping , the pie was intended for me as a snack in the car on my way home , but My son (1 Year and 4 months old) also likes to share with me , so needless to say not wanting to mess in the car , I left the pie until we got home. I have bought many Moya Pies from the same shop before without any issues, trusting that the pie that I just bought was of the same quality as all the others I have had, I opened the pie and took a big bite without thinking twice about it. I notice a fowl smell to the pie and I spit out the bite of pie that was in my mouth - I became terrible sick in my stomach when i saw that the pie was rotten on the inside. What if I have given this pie to my child? What would have happened if I did not see the pie was off - We would have gotten food poisoning. I am giving the company 48hours to reply to my complain - thereafter I will be phoning the Health Inspector