Stephen Sprunk wrote:
On 02-Mar-12 08:39, John Levine wrote:

Knowing the BIN ranges of debit cards and gift cards doesn't help
here, since many of them are entirely valid and the train company
will get paid.

Exactly my point.

John Levine did not support your point, dude. If a merchant has a
reason to have a policy not to accept the gift cards because
authorizations cannot be obtained during a very brief transaction,
he can avoid these cards due to known number ranges.

Even John Levine agreed that the number ranges were known. You
have yet to own up to it. It's a non-issue.