I can answer #2. There are multiple and different log in screens in the Intuit-universe, unfortunately. They tell you "one ID for everything Intuit" and that means there is overlap. When something is "from" QB, that doesn't make it QB. That really just means Intuit. I log into Developers, here (pro tax), QB (mostly to access the online stuff), and I also see Mint (which I do not have), and some products show in multiple places, or link to/from them. So, you are not so much a Tax Customer as an Intuit Customer, from their perspective.

Here's hoping you learn more and are able to share it here.