It really depends on the officer. One may call or send via mail or email. Maybe send a letter to come at the officeMy question again is, is it mandatory that the office must call the applicant prior to stage 1 decision? Why I am asking is because I didn't receive any call nor have any miss call.. I have been sleeping with one eye open always monitoring my phone and keep it close to my head when I am sleeping in the afternoon, so I don't miss any call..