Yes they do but you have to have lot of people to get a discount
My company does our parties there and the price is good, now, this is for about 200 people and they have a separate room for us. I sugest calling months in advance.
If you mean "today is my birthday can I have a discount" the answer is call up there and ask.
They have party packages. Not sure about a general discount though.
I asked before about this and asked for a corporate event. I didnt get a straight answer but I would assume the more people are going the less it would be. I think thats general practice at most places.
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