This is no longer a violation of the merchant agreement. The card brands used to ban minimums, but now merchants are allowed to require a minimum payment for cr

This is no longer a violation of the merchant agreement. The card brands used to ban minimums, but now merchants are allowed to require a minimum payment for credit. Too many cash-based businesses who just would not bother with a credit card machine at all if they weren't allowed to stay cash-only for small transactions, and the card brands want to be in as many storefronts as possible.