The end of January we reported that Google AdWords Professional Verification Seal Not Verifying.
So if you were logged into a Google account, (Gmail, AdWords, IG, etc.) and clicked on a Google AdWords Professional Verification Seal, it would take you to Google AdWords. Now it takes you to the verification page.
Kevin Gibbons reports his verification page now works, and I am logged into my Google account.
Forum discussion continued at Search Engine Roundtable Forums.