A little background... We want to have a small wedding. 100 people maximum. After picking some people we wanted to invite we told both sets of parents they had 40 people they could invite. My future mother in law gave us a list of 80 people. We told her that wasn't a possibility and she had to cut down her list. We just don't have it in our budget to invite 40 extra people. Eventually, she gave in and did cut down her list.
So, last week we send out our invites and we have started to receive the RSVPs back. A majority of the ones we receive from the people on her list are writing in that they are bringing extra people. Some are 2 or 3 extras, but I received one this morning with an extra 5 people attending.
I'm not sure what to do from here. Is it rude to tell everyone they cannot bring extra guests? I feel like my FMIL told them to write in the extra people on purpose since we made her cut down her list.