called more than a few time, it was a pain and frustrating - the full IRCC experience. Congrats on getting the change done.They just cut the call if no representative is available. Did you try multiple times till you finally got someone to talk to?
UPDATE: Called a second time, wait was approx 40 minutes, but it was quick to get the address updated. Representative said it should take about 2 days for the change to go through. Not sure how to confirm once it does, maybe it shows in the citizenship app PDF we can download.
Had a look at my application online but it seems to still have my old address so not sure how to get a confirmation of the change other than believing the lady I spoke with