tdc01 had some good advice, I will also describe how mine got fixed in case anyone is still out there struggling with this...
Though I'm sure I tried this before, yesterday it worked (after the firmware upgrade, not sure if that had anything to do with it or not):
My credit card statement address looks like this:
FIRSTNAME X LASTNAME
300 YARD DR
SOMEPLACE, SOMEWHERE LNL NLN (Canadian postal code)
In my Account Settings, my info had been entered during setup like this:
300 Yard Drive
Someplace, Somewhere LNL NLN
When you go into Billing Info and edit the billing address before submitting for verification, it automatically fills in the info from the Account Info side. If you edit this info to match your statement from this screen, it seems to fail.
Follow what tdc01 said: go into your Account Info and delete/re-enter all the info as it appears on your credit card statement. For me the middle initial did not matter. Ensure all extra spaces are removed from the text fields.
When I went back to Billing Info, the address was already filled in correctly and the verification went through smoothly.
Like I said, I had tried this before and it failed, but there might have been a slight difference or a problem with verification. Who knows, but it seems fine now :-)
Thanks for the help!