My fiance and I went there for late night drinks a...

My fiance and I went there for late night drinks and we get there and the waitress is asking us what we want and never handed a food or drink menu. Yet she was asking us for what we want to order and we had to finally ask for a menu . Then on the drink menu it said "You keep the GLASS." So when my fiance and I were done drinking our drink we left and as we were leaving the waitress said I couldnt keep the glass. So basically they lied, you CANT actually keep the glass. She said we can only keep plastic cups. If we couldnt keep the glass then they shouldn't write it on their menu in huge white letters "YOU CAN KEEP THE GLASS." Just saying. It's a lie and a scheme!