Have booked party for ds. Venue requires condirmataion of numbers 2 weeks before. Made this clear on invitations which went out a few days before the end of term. So far I have had 3 replies out of 15 and 2 weeks date fast approaching. AIBU to expect venue to be more flexible. It is the Easter holidays for a start and for people to reply. Its only common courtesy after all. Especially as last year Ii had a mum chasing me for my reply the day after I received invite even though deadline wasn't for another week or so.