Since restart of the random tests you'll get an e-mail if you're selected if I understand it correctly. What if you never get that mail because it's stuck / deleted by your spam-filter? Is there a known sender's address for these mails? Will they fall back to calling you and will you have a chance to explain or is it just a robocall?
Glad if someone who was unfortunate enough of being selected since July 19, 2022 could report how the procedure unfolds.