I have a premium account. Under the Account --> Payments tab (via the web-based system), it says:
“Your premium account will expire on:
» undefined, undefined NaN, NaN”
That’s probably not good! I had checked as some folks had reported some billing issues with their free accounts. My username is GeorgeKirikos.
It should have a clear expiry date, so that we can renew properly when the time comes.