Well, one can easily file a complaint with the credit card of choice which I've done in the past with other vendors. And successfully I might add.
Believe me when I say merchants do not want to jeopardize there Visa standing.
Consumers have much more power then one would think.
The thought of getting one over you enrages me.
Even if its a dollar, the thought of a fast one is, well, "homy don't play dat".
There was an old saying in a Serbian village my gramma grew up in, translated;
You spit in my eye...
... I'll piss in yours.