Worst Manager ever

I bought some meat from Mitchell's Moslem Butchery that was bad it was my second time experiencing this the first time I had to throw t out because i was too busy working. Anyway I called in told them that the meat was bad and they said I should return it. I came to the store and spoke to the acting manager Nawaaz and he was so rude and highly unprofessional even started shouting in the store and even told me that i shouldn't shop there anymore. I have never seen a Manager more highly disrespectful of their customers in my life.