We have organised a birthday party for my child but I sent the invites a bit too early (6 weeks?) - my mistake. I’ve not done this before and I’m a shift worker so personally prefer to know in advance and assumed others also have plans! The nursery is medium sized but most of the parents don’t know each other because of the varied times. The key worker gave us a list of kids who my child plays with most often and I gave her the invites which also had the RSVP date on. Currently only 7 of the parents have RSVPed - do I ask the key worker to gently remind the others or just leave it? We are paying per child (£35 per child - not cheap!) so if we haven’t paid for entry, food etc there will be an issue on the day. What do I do? Thanks!