Please click on either options. The "Buy Now" does have an option to pay via Pay Pal. Please note if you have are attempting to pay with your HSA account, you may need to contact your HSA customer service, if the transaction does not complete to inform them that you are paying a bill at Willow Path Counseling, they will then tell you how to proceed. 

When paying via this option, click on the button, on the next screen in the "Price per Item" section, please enter the amount you want to pay, then hit the "Enter" button.