You've just reminded me of how much I rely upon a free service provide something so critical to my everyday life. Time to move to a paid service where I can have someone to call when issues like this turn up.
Recently, I became a "Microsoft Partner" which gets you a monthly Azure allowance, software licenses, and five Enterprise accounts for Office365. This is only $550 a year which is cheaper than my previous office365 small business account.
The support is great when or if you need it. You probably will.