Nokia :: N900 Stale Email Account Blocking New Service?

Don't know if that's just me or my newly acquired N900..... I used the Nokia Messaging service during the trial phase a year or two back. After the trial was over, and finally the real service became available on the local carrier ( 3 Hong Kong ), I signed up for the service only to find out that the old email address I signed up during the trail period is now blocked. I can add email address that's not in the original trial account, but not the same ones ( got an error message from Nokia Messaging setup on the N900 saying another Nokia Messaging account already taken the email address I was trying to add).

So I went into the email.nokia.com to delete those email accounts (and the status of my subscription correctly shows that it's now operator subscription), but the problem persists. Actually it seems that my N900 email accounts under Nokia Messaging are out of sync with what I can see on email.nokia.com.(I have a couple accounts on the N900, and none in email.nokia.com)