The worst part is that they will keep you on the phone sometimes for upwards of 8+ hours to settle this sorta crap - I am lucky to have a job that I can keep a phone on hold via speaker for hours and hours at a time.
Protip for anyone reading this - they put a "hey Mr. X, you still with us?" human bit spaced out by around 45 minutes-ish. Don't miss it or be on mute because they'll drop the call in about 2s if you don't immediately answer effectively making you start ALL over again.