My stepsister is getting married thousands of miles from home. Before getting flights, I asked her if kids were going to be invited or not. She said "yes, but we won't have specific activities for kids." Her website also says "all out of town guests are invited to rehearsal dinner and other events." So we booked 4 tickets to fly there, with our 3 and 4 year old. Rehearsal dinner invite from future MIL arrived in the mail with only us adults on it. I emailed RSVP asking if rehearsal dinner was adults-only. The answer was "yes." Well, now we are spending thousands of dollars to fly to a wedding and are being told we can pay a babysitter service in our hotel, to watch our kids (which we won't do - would have left the kids at home if we knew this were the case). Mentioned to my mom, stepdad called his daughter (bride), she sent me an email saying she would tell her future MIL to please let the kids come to the rehearsal dinner. This is the last I heard. MIL has not emailed me back changing her mind. Stepdad says I should just tell her the 4 of us will be at dinner and be done with it. I don't know how to proceed.