franchise manager refused to take customer complai

I bought breakfast during my tea time as take away when I got to the office I found the food to be off..I returned it as soon as I could which was during my lunch break and was approached by the franchise manager who rudely told me that there is no way her food could be off so she doesnt know what im talking about and this is a business and will not be taking the food back nor will she refund me. I then asked her to taste for herself and she sarcastically told me she doesn't eat meat. And went on to ask if I know how a business works and that it has already gone off the till so where will she get the money to replace this plate. Well if it were my franchise I would've made sure I produced quality food that the customer would enjoy before I think of the money. It's not the 1st time they produced bad food a collegue and I had suffered at their hands a few weeks back and the manager that attended to us on that particular day was very friendly and attended to our complaint, which is why it's so dissapointing that the franchise manager could be so rude.