8882422100, 2, 3, 4, 0. Don't trust what it tells you about the wait time to speak with an agent. Mine went from 27 minutes to 1 minute (after about 10 minutes) to 1 minute again to 7 minutes to 1 minute lol. They asked for my UCI number, and confirmed my personal details before checking on the status of the application. Good luck.
Thank you