I did not submit other paper works, only the one asked by the form and the money. But the catch was that I only brought my previous EAD to the support center for finger printing, then the guy there sent the finger printing to Missouri center (UCIS does not know why), which has a huge backlog for EAD renewval type of thing per UCIS, so they suggested me to get a iEAD, saying there is no hope to wait for that, then now the online status was changed to "approved". So you never know what UCIS might do, totally unpredicatble.