Client giving me impression they're not satisfied with amount of delivered photos - Can I get some opinions please?

I was messaged on Friday to pick up a photography job for a family event for the coming Sunday, which was this morning.

All in all, I took around 800 photos, I delivered 210 total.

I covered everything from key moments, loads of candid shots, family and friend group shots, food and details of party. I edited many of the stand out shots, and main ceremony segment photos.

They've asked "Is all the photos", "But are there more ? Please". - I've never been asked this before? Looking for opinions. I was solo on this job.

I always tend to go through and remove duplicates, test shots, and any images where people are blinking or the moment isn’t right, trying to make a curated set of the images.

I can't tell if they're upset or what, but it's got me thinking - is that too little for 2.5 hours of photography with the majority of people only showing up for 1-2 hours of the event?