According to the Mastercard Merchant Violation form:
http://www.mastercard.com/us/persona...iolations.html
charging a minimum amount to be allowed to use MC -AND- charging more for the use of the card are against the rules, so I reported them.
The fact here is that the fees that MC and Visa charge merchants, as well as that paypal fee, are THE COST OF FUCKING DOING BUSINESS!!! If someone disputes a charge on paypal and someone requested the buyer to add the fee, then the dispute would almost automatically go to the buyer.