This has not happened to us yet but we have a family friend who has been known to do this in the past. How do you respond to someone who says.. "I can not come but my daughter will in my place" Does the usual "Unfortunately we could not invite everyone we wanted to invite...." still work in this situation. Also, she is totally the type of woman that would come back and say "It's not adding more numbers it's replacing myself" I want to have my response down so I don't get caught off gaurd.