Frustrating, i realize. Friend of mine has had a similar experience. I, for one believe airlineapps/Delta should work toward a more considerate and effective process that provides some feedback to applicants after they've submitted requested changes/updates. Granted, resources can only allow for so much feedback, but at least let the applicant know if the corrections complied with what was required and an updated status. Right now too many are left wondering and IMHO it's unprofessional.