Are you sure they are closed?

"For customer service and technical support for ProSeries, ProSeries Basic, and using Intuit Link with ProSeries, please call 1-800-434-6818. We offer extended hours for support at the busiest tax-filing times. See below for extended hours. Closed on all holidays listed below."

https://proconnect.intuit.com/community/order-products-from-intuit/help/how-to-contact-proseries-for...