What can I do? Do they have to give my money back?

I got married on saturday and the reception place served a buffet lunch. I had to pay 12.50 per plate. I was happy with everything until I later found out that 12 out of my 35 guests got sick, like throwing up and having diarrhea all night sick. That night (on my honeymoon) I started to get sick. I spent my entire honeymoon on the toilet. It was devastating. I called the place I had my reception at the next day and she said that something must have been going around b/c even she and her family were sick and throwing up too....I was like well are you going to do anything for me, I mean it's pretty embarrassing for me to have to deal with the fact that my guest got sick! She said she'd ask the staff if they got sick b/c they ate the rest of the buffet food left from my wedding reception. Today I called back and talked to them and it was a guy this time. He said no one got sick and that he can assure me it had nothing to do with their food. I advised him that there was stuff floating in the punch! He said thanks for letting me know. I asked him why he wasn't appologetic or anything. He said it's b/c he doesn't see it as being their fault. I told him about my honeymoon being ruined, and he said to reschedule. I was like WOW....how rude! Anyways, I put in a complaint with the health dept. They said they are investigating in and trying to see if they can narrow it down to being the reception food's fault. I know it was b/c my maid of honor's boyfriend didn't eat anything, he only had the punch and he got sick as well. Is there anything else I can do?