Just here for a rant really, since I can't say it at home! I'd put it on AIBU, but you know, AIBU 
We're getting married in a bit over 8 weeks. We sent our invites in January as it's half-term / jubilee weekend and we live in a holiday destination that gets busy so wanted to give anyone having to travel plenty of time to get sorted.
We asked for RSVPs by end of March, in order to firm up costs with our venue, and get a good handle on our final budget. All fine; the vast majority have done so.
There's just a few of DP's family who 'still can't confirm'. They're the people having to travel the furthest. It's not the fact that they can't that's really bothering me, we could just give provisional numbers to the venue at this point, it's their attitude of 'well you shouldn't need to tell them firm numbers yet' and 'why are you paying them so far in advance?' (We're not) and 'The venue will be lenient, it's covid times (
)' and other mumbling.
WE wanted to know numbers so WE can manage our budget; if it were one or two people astray then no problem but the indecisive ones add up to the best part of a grand's worth of our budget between them, that's a lot to know if we will or won't be spending in 8 weeks time! Not to mention being as fair as possible to our venue who have struggled in these 'covid times' and are actually a charity.
Am I being over-sensitive to be pissed off with them trying to call the shots now when they've had more than enough time to make arrangements, or at least say Yes or No?