What forms of payment does A.S.P.E.N. accept?
A.S.P.E.N. accepts MasterCard, Visa, American Express, and Discover. You may also pay by Check or Money Order. Money Orders must be in US currency. Please make checks payable to Digital Tangents and mail them with your printed-out registration form to the following address.
Digital Tangents
PO Box 2155
Universal City, TX 78148
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