Bad customer service from steers the glen mall

I went the to buy a quarter leg with chips and the meat was off as it had a very bad smell and it was very dry as if it was prepared yesterday so it was the over night, i took my takeaway and went back to work as soon as i was about to eat when i opened the packet the smell was unbearable i couldn't even taste it. I rushed back to the store to complain about the meat that is very off, the lady who assisted me said i must eat it or if i want another one i should pay for it, i asked to see the manager he was very rude and he said the very same thing that the lady said which is i must eat that smelling, disgusting, dry old meat of which i find it very unprofessional and rude to tell the customer to eat an offish meat, with a very funny smell. I'm very disappointed from steers the glen staff because i usually buy my lunch from them but the service that i got today was unacceptable, as a regular customer they were suppose to do something about my complain, i ended up giving them options as in how to resolve the matter yet still they told me to eat the rotten meat, i threw it in a bin right in front of them because they didn't wnna do something about it. I lost my money, appetite and my lunch. Steers the glen hav a very nasty, unpleasant attitude towards the're customers and something must be done.