Can't change country for account

Question

I recently moved from the UK, and though my cards are still attached to banks in there, they now have billing addresses in the US. So, I've dutifully gone off to my iTunes account to change the address details to my US billing address -- but it doesn't work!
Or it doesn't work all the way .... When I go to change country, selecting the US, I follow the onscreen instructions to change my card billing addresses. But after clicking "Done", I get an error saying my account was changed while I was editing it (errrr, yeah ....) and my details could not be saved (wha ...?).
Except some of the account details are saved: I've now got a US street address and phone number, but the town, post code, and (all importantly) country are still the old UK info. This is very interesting, but not very helpful. Nevertheless, no matter what I do, I can't seem to get the account details finally switched over to my US address.
Any thoughts? Is this some bizarre insoluble problem caused by having a UK card with a US billing address? (That would also be interesting, but very annoying!)
Cheers,
Carl

Answer 1

A couple things I'd like to mention since last posting.
First off, I called Apple again about my issue to see if they were getting close to fixing it. During the conversation the rep i spoke to suggested a work around. Basically, she pointed me to go back to the myinfo site and at the bottom where it says "Don't have an Apple ID?" link to click that and create a new one. So i did and set it all up as US (instead of Canada which it wasn't letting me change from). I went to iTunes and logged into the US store with my new ID and it of course pops up a window saying to verify the info and such and enter your form of payment(or select none). By doing this I was able to authenticate my iPhone and get it all up and working.
Now my initial concern with setting up a new Apple ID was that the music I had previously purchased with my other account while living in Canada would no longer play because I'd have to authenticate the new ID. So I tested it. When you download a song with a different ID and then click play, it does ask you to authenticate but I am still able to play my older songs too. They also all sync up to the iPhone just fine and all play just fine. So right now it's my recommended work around.
Little problem though. while I was able to make a new ID with a US address that showed up properly in iTunes, it still would not accept my credit card. My credit card is a Canadian card but I have changed it to a US billing address. iTunes, however, knows this and when you enter it in the payment options and click ok, it tells you that you must enter a valid US credit card. So all im doing now is buying iTMS gift cards with my credit card and then adding them to my new Apple ID when want to purchase something.
Hope this helps a bit.