Rotten/Awful Fish made me sick!!!

I just bought a ready-made 'snoek' at Picknpay Maitland store, and it was completely off, smelled bad, and it tasted like ****, I started getting sick to my stomach and started throwing up. My roommate had his piece and he also could not take eat the rotten fish, and we threw it away! This utterly disgusting and unacceptable! If I wake up feeling like this tomorrow, you can bet this will not be the last time you hearing about this, and let alone the fact that I spent money on this!