Thank you. I printed the applicable pages from the Visa pdf. I also googled Mastercard merchant agreement pdf and got the applicable pages. However it does not appear that Amex has these rules. I can't find them anywhere when I googled. So I guess I will have to use my Visa and/or MasterCard credit cards for the purchase although I really would prefer to use my Starwood Amex. If anyone comes up with a website that would help, please post it. Thanks.