In message
, at
11:31:02 on Fri, 28 Mar 2008, Mizter T remarked:
I would be astonished to discover that there wasn't a standard ecommerce
plug-in that identified the kind of card (along with the one that
everyone uses to ensure the checksum is OK). Even if the seller doesn't
deploy one, their merchant services must, so they can tell who to send
the charge to.

One would think that likely for big ecommerce companies, but perhaps
not elsewhere.

It wasn't the size of the e-commerce company, but the size of the
organisation producing the e-commerce module. To take an extreme
example, someone can be a really small company selling on eBay, but you
get the benefit of Paypal's card processing. I wouldn't expect any small
company to be writing their own card processing software, any more then
they write their own spell checker.
--
Roland Perry