In case folks are interested. My paid subscription was just restored in the past hour or so -- 7.5 days after it disappeared.
The past 24 months of my billing history is restored. I received a professional note that apologized for the interruption in service plus a "gift" of double-upload capacity for a month (I've never hit the limit so this doesn't matter to me). No real explanation what happened or why it took a week to fix. I'm glad it is back and I suspect I will "settle in" (and down) though my confidence in Evernote is shaken. I consider Evernote critical infrastructure in my day-to-day life and I'm relieved I didn't have any time-critical Evernote-critical activities going on when this happened. I had been quite happy to put all my eggs in the Evernote basket (despite some mild ups and downs in the past). Once recurring tasks became fully-functional I cancelled my Aoya subscription (I miss mindmapping but not $$ much). But I'm rethinking this strategy.