Locked out of account. Recovery doesn't work. No answer from support.

Individual 1P user here. Changed my account password last night and was immediately kicked out of all logged in sessions on web, iPhone, Mac. Stupidly did not record my new password prior to changing it and it wasn't saved to my MacOS clipboard either. 

Going through the recovery process and it seems I'm just blocked or locked out. I have my Emergency Kit (sans new password) and I have my recovery code. 

When I entered my recovery code for the first time I got this message: "Login occurred too recently."

I waited a bit and tried again and got: "Recent attempt was cancelled."

So, I sent an email to 1P support. Haven't heard back and that was nearly 12 hours ago. Just tried to use my recovery key again and still get "Recent attempt was cancelled."

Having PAID for a product I need to use but which I am now locked out of with seemingly no way to use the recovery methods has me beyond frustrated. I know I'm stupid for not recording the new password before I changed it (it was 100 characters long) but, come on—this is why recovery methods exist! And the fact that even that isn't working, well, I'm an unhappy customer.