Hell if they had 10 days to look at it and didn't get to it, they must assume your work is fine, send it up the chain and get it done!
we work together on a recurring project a few times a year and this is a loooot of editing and checking numbers that get published. So I'd like other eyes on it just to be safe because if something is wrong, it isn't great. It should be fine but it's annoying that they did it.