********** for dinner

My family and I are holidaying at Umtamvuna River Lodge and today the receptionist named Sara ask us if we would like to join them for dinner, they'll be doing a braai and I ask her how much will it cost, she replies R85 or R75, she further says it will probably be less charge for the kids. We go and have dinner afterwards we request a Bill and the Bill is much more than what we were told. When i ask Sara she says she said R185 per person. I ask everyone and they insist she said R85 or R75. My husband asks for the owner to intervene and he apologies and insists the dinner is R185 and he can't do anything.