Joseppi's Pizza

I made a fair review on Yelp and was rudely commented by an employee I contact Joseppi's Pizza through Facebook and got nowhere except a childish reply back I can send all photos of the conversation if you like They also threatened to leave a negative review on my Facebook page which is wrong because I commented first wanting to know why was I treated this way through yelp and being called an employee through Yelp and trying to make them buy advertisements when I DON'T work for Yelp Now through Facebook I get this? I feel like I was rudely treated by my opinion and then got even more rude comments back when I wanted to know why do they feel they need to do this