I don't know why embassies put other countries in the passports it seems like a really bad idea because you should never ever state that information....
if you have a Visa you don't need a ticket out.. that is typically a requirement for exempt entry. Even if immigration doesn't always ask but airlines often do.
Well I don't know about DTV extensions but for retirement and on one year extension they will check your paperwork and if something is missing or wrong they'll tell you and you take the papers back and you go fix it and you come back only when they take your papers and it's complete enough for them to do the job that's when we take the payment. In my experience.
However for Visa applications embassies seems to be a different policy.