New to the board, not sure how to reply, quote too much
Thanks again for your reply. In your case, your 15 day late extension took place in 2006, that was way before 2012. By then the longest overstaying period allowed is 10days.
After 2012 and befor 11/2016, if the overstaying period is 28days or less, it should be disregarded.
This is a different issue from 3C.
My question is: for a single gap which is allowed in lawful residence, do I need to provide extensive justification for that single gap in the application cover letter? Waiting for expert's opinion! Thank you.