Likewise for me, in their FAQ section they have PayPal listed for Domestic and International payment options and even when you start the checkout procedure it lists PayPal as one of their sponsors/adds at the bottom of the page but not an available option when checking out.
I would give them a call @ 1-877-269-5776 during their business hours of: Monday thru Friday 10am-6pm EST, as I plan to do the same.
Pat Patterson