Discover Card, Visa, Amex, and Master Card accepted for all Shell Houston Open ticket purchases. Tickets may be purchased through our online servers above or by calling one of our ticket agents at (800) 699-0571. Please know that all sales are final and tickets non-refundable. Shipping is guaranteed and tracking is available through FedEx to ensure on time delivery. Unless otherwise stated in your order, tickets will be shipped to the mailing address of the credit card. Thank you for shopping