|
|
|
|
In article >,
says...
> In article > , Dog3
> > wrote:
>
> > >>
> > >> Never do I think to do that. I never check my slips or destroy them.
> > >
> > > Are you going to start?
> >
> > You betcha I'm gonna check. I may just drive to Nebraska to find this
> > person. I have a feeling this person was in St. Louis at one of my doc's
> > offices. That is where they got it. From now on, I'm checking everything
> > when I purchase. What I want to know is, do you sign the credit card or
> > not? I've been told yes and no.
> >
> > Michael
>
> I sure do sign the card. I also acknowledge the clerk who compares the
> signature to the signed receipt. I'm also in the habit of shredding
> just about anything with my name on it, too.
>
> Interesting tidbit: My local Cub stores do not require a signature on
> the slip if the amount is under $25. I have no idea why they do not.
Yes - that's a new feature meant to speed transaction times. Turns out
that most charges on credit and debit cards are $25 or less.
I've also noted that your receipts generally print only the last four
digits of your card number. That leaves twelve digits, first digit being
a 3, 4, 5, or 6. Those correspond to American Express, Visa
International, MasterCard International and Discover. So that would be 3
*10^11 possibilities to go through, or 300,000,000,000. I believe the
last digit or two is part of a check digit algorithm but it has been a
long time since I wrote credit card processing software.
|