You may want to contact support about that. There should be a contact link on the Backer Portal page (eternity.obsidian.net).
While it's possible someone might see it here (other than us perusing forum-goers), your best bet is to get a hold of Obsidian's support team, directly.
Yeah, I had submitted a ticket last night even (and a more clearly worded/concise ticket this morning)... and I totally get that they are almost certainly insanely busy right now. I'm just getting a little desperate/going crazy watching everyone else start playing while I'm still waiting to start downloading, ya know? Just trying all avenues/hoping the right person sees this soon...