I'm assuming thats a coincidence. I cannot imagine Visa's payment processing infrastructure is coupled to its web infrastructure in any way. That would be monumentally bone headed.
Indeed, as I remember setting some payment stuff up at my parents business a while back-- you can get a gateway setup that uses their web interface to process transactions.
That was a while back, but maybe they have legacy systems.
Either way, they are loosing money one way or another =/
