Rotten fish fingers from boxer store

Greetings! I recently went into a boxer store located at ka-Matsamo Plaza , since it a supermarket closer to where I reside. Went in and bought 2KG of fish fingers, looked at the expiry date and all was well, till I got home to prepare some, I prepared them, felt a bad smell,then ask someone else to prepare them, to my surprise,they too said the was something wrong with them , decided to break open one "BAD IS WHAT I WITNESSED" .