I got it to work by going back to the file page, switching the refund method to paper, going back and editing my mailing address, temporarily, to the US address matching my US credit card. Then it allowed me to progress in the File Return stage. Right before I actually filed, I went back and changed my address back to Foreign or U.S. Possession with my actual foreign address. Then I went back to File Taxes and followed the final steps from where I'd left off when I switched my address to the US mailing address. It seemed to work on the Intuit/TurboTax platform end; we'll see if it's accepted. Now, my Return Status is "In Progress." I'd much rather get a direct deposit rather than a paper check, but this will do.
