My DD is having a birthday party. It's a very "girly" party and when we asked who she wanted to invite she gave us a list of girls names. Because of the type of party we needed numbers by 8pm last night. It's not one that I could just squeeze someone in if they turned up without RSVP and this was made clear on the invitation. Of the 10 invitations that went out we had 9 RSVP and numbers were booked. At 9am this morning I got a text say A CHILD will be attending. A CHILD was not on our list and DD is adamant she never gave him an invitation. Everything is booked and I can't squeeze him in even if I wanted to. I don't know what to do. I have visions of this poor little boy turning up and me having to turn him away or have him stay and realising that it's all nail polish and make up. How do I word it so as not to offend. His mother has been known to play the race card every time her child is not included in things. What would you do?