It amazes me why Intuit wouldn't implement a simple fix to allow registration of foreign addresses and phone numbers.

The only way to make any small change is to call Support to have them override on the back end.   And yet, not everyone at Support knows how to do the override (e.g. 11-digit phone number) or understands the importance of these details, which you mentioned, matching the IRS' records.  Recently, I had to spend well over an hour on the phone with Support because some of my account details went missing for no reason (as reported by some users).

I second the idea that Intuit should really have their system updated ASAP to cater to customers overseas.  If competitors like CCH have no problem building that into their systems, there is no reason why this should be such a difficult feat for Intuit.