Using the portal no one will come back, till you have a reference. Once you have a reference then it quick process. However, my interview was okay, it included questions with ISTQB certificate which the interview didnt know what is included like what are types of Agile. Next they asked a simple one line answer QA and QC difference. Throughout the interview they were making faces. I feel interview should always make interviewee feel comfortable as there is already a pressure