I believe I have heard the option when calling *611 and choosing the key for payments or billing
You can also dial #PMT from your phone. If you're already overdue, I think you'll need to contact Financial Services. You can probably find their number under the blue "Contact Us" link at the top right of this page, or dial *611 and ask to be connected to them.
how do i do this?
The number to Financial Services is 1-800-754-0961. You have to make sure you are on the eleventh day after the due date, though, before FS will setup a formal promise to pay.