I invited a coworker to my wedding and the invitation sent said only her name because she was single at the time it was sent. We used to work in the same office but haven't in over 4 months because she transferred departments and we have barely spoken. I saw her about a month ago and she let me know that she was back together with her on-again, off-gain boyfriend, but she never asked if it would be okay to bring him to the wedding. Today I received her RSVP and it lists 2 adults, plus 2 kids. So essentially, she received an invitation for one and added 3 guests. If I didn't have to pay for the kids, I wouldn't mind, but they are well above the age for free kids that the reception venue has set. How can I let her know that she is welcome to come, but I do not have room for 3 more guests? Should I call her or can I send it an email? I actually saw her today at a work function and she didn't ask or mention anything about extra guests. As I previously said, we haven't spoken hardly at all in 4 months and 96% of the little conversation we have had has been work related. I don't want to cause problems at work, but the wedding budget is already way more than planned and the guest count is getting very high as well.