All payments are due at the time of purchase unless otherwise specified. We accept all major credit cards, Master Card, Visa, American Express, Discover and Debit Cards. We require that all information entered (name, address, phone numbers, credit card number and V-code), pertaining to the Credit Card holder, is correct, valid and legal. The information entered will only be used by INTER STONE SUPPLIES, LLC for the purpose of processing/completing the transaction and none other.