Our wedding is in 2 days, and I realised last weekend, that our venue over charged us for our dinners - prime rib was set at $6 more than the chicken and vegetarian option. From amongst all of our guests 45 are having either chicken or vegetarian for dinner. The difference with tax and tip is just under $400. I emailed the restaurant manager and explained this in a non-blaming way, and said I believe it was just an honest mistake made when settling up our final bill last week, and that we all missed it. I said we'd be happy with either a refund of the difference or having something extra thrown in, maybe a couple hors d'ouevres, keep the bar open for a while longer (it's open bar 'til midnight, cash bar after that), or anything else that they think is fair. That was 2 days ago, and no response. I will call them tonight after dinner to follow up and see what is going on, but based on their non-response I'm kind of expecting to get some push back. What would you do in this case?