So I need help. My FH has a stepdad with an extensive family (brothers, sisters and adult nieces and nephews). Most of those 2 generations were invited even though I have never met them after 3 years. Our RSVP deadline was yesterday, and many of these people did not RSVP. What was worse was that one of the nieces RSVP'd at the last minute and added her two kids to the bottom. Ugh! We LOVE kids, but the only ones under 18 who are coming to this wedding are FH's two because they play a big part. I had FH reach out to her and leave a message explaining that we did not extend invites to children to immediate family, so we could not accommodate theirs and we hoped they could still make it and to please call as soon as she got the message to discuss. Well she never called and our numbers were due today. With them not on the list, we have to rearrange three of our tables and actually consolidate and get rid of one. What do we do if they call and say they were able to find a sitter?