Probably doesn't matter which one you call. You'll likely get some guy in India for tech help regardless.(?) Even if your account is in UK, you might still be able to key in the msn.com site to log/reset your Passport cookie. I do know that I get the button on that site.

There's the possibility that you have a Passport cookie but that it's gotten corrupted somehow. Might be worth looking for it and deleting the one you've got, and then trying the login - if you haven't already dumped your cookies several times over this.

John