that is the OLD rule long before they changed it when the first yearly extension needed 60 days seasoning and every year after that required 3 months
That rule was changed YEARS ago but some offices continue to parrot it and until someone actually calls them on the carpet and makes them admit that they are not right, that the seasoning is 2 months before every extension people will just follow what their office says 🙁
the real question IS do you now have an OA visa/extension or are you applying cold for a new Non-O and year from free stamp entry?
The ONLY exception to the "banked money for new Non-O and first year" rule I've ever seen is people who were getting OFF their OA visa/extensions and getting new Non-O in country <- That's when the office has bent and allowed 12 months of monthly income for the initial Non-O and first year
if you stuck to your guns told them you wanted to see the print out stating 3 months before I'm sure they'd back down and accept the real rule on seasoning which is 2 months before you apply.
your daughter needs to have the PDF print out of the DTV (as that paper IS her visa), the police report stating she lost the other passport and the new passport
When she arrives she'll get stamped in on the new passport for a new 180 day entry stamp
She's fine and far from the first person this has happened to.