You can also pre fill some of the information prior to submitting, but then make the final submission (with proof of entry stamp & or accom booking) when you’re there.
Anonymous participant be careful. Embassies have been known to request for either interviews or pictures of all passport pages, as they know some people have not been staying in the country for duration of application.
I know it’s annoying & frustrating / but bear it out… it’ll be worth it in the end.