nismoZtuner wrote:my total was .17 cents paid with my amex PRG
That really makes me doubt how much the merchant can get after paying discount rate, especially when there is a flat fee of, say, 25 cents (or whatever on their agreement) per transaction. Oh BTW the smallest transaction I made on my card was in the USPS office when I was about to purchase an envelope, and the front desk guy never felt like there is any issue.
Of course in my place usually small restaurants require min. purchase of usually $10 for card (including both credit and debit) transactions. I have even seen higher requirements even when Visa prohibits merchants from setting a minimum purchase larger than $10.