Aaron Parecki

#creditcard

• 

  oops the writers of So Help Me Todd messed up:
  
  "3752… that's an American Express card!"
  
  Nope! There's 0% chance of that being the last 4 of an AMEX! For that to be true, he would have had to had 3 replacement cards and 74 other authorized users.

  Portland, Oregon, USA • 73°F

  5 likes 3 replies

  Thu, May 11, 2023 8:06pm -07:00 #amex #creditcard
• I always wondered why my AmEx cards ended in 100X... : amex (www.reddit.com)

  "37ab-cdefgh-ijklm
  
  All Amex cards start with 37
  
  ab is tied to the country of issuance/market
  
  cd usually relates to the product in the AmEx portfolio
  
  e is billing cycle
  
  fghi is account number
  
  j is the issue number
  
  kl are position on the account, starting with 00 for the main (basic) card holder
  
  m is the Luhn/mod 10 check digit"

  1 reply

  Wed, Jan 26, 2022 1:47pm -08:00 #amex #creditcard
• 

  Just filed my first credit card dispute. Someone at @parksideaustin changed my $5 tip to $15, good thing I took a picture of my receipt. And thanks to @CapitalOne for sending me an email alert about the unusually high tip!

  Los Angeles, California, USA

  7 likes 2 replies

  Wed, Dec 13, 2017 6:26pm -08:00 #creditcard
• Can I charge my Stripe fees to my customers? : Stripe: Help & Support (support.stripe.com)

  

  Sat, Aug 5, 2017 11:45am -07:00 #creditcard
• 

  Wondering if it's possible to use a magstripe writer to encode a @Final virtual number onto a physical credit card...

  Portland, Oregon, USA

  6 likes 1 repost 7 replies

  Sat, Oct 1, 2016 9:07am -07:00 #creditcard #final
• Samy Kamkar: MagSpoof - credit card/magstripe spoofer (samy.pl)

  

  Sat, Oct 1, 2016 8:42am -07:00 #creditcard #magstripe #security
• Features - Square (squareup.com)

  Wed, Apr 28, 2010 11:22am -07:00 #apple #business #credit #creditcard #ecommerce #iphone #web
• Anatomy of Credit Card Numbers (www.merriampark.com)

  Fri, Jan 29, 2010 4:12pm -08:00 #business #credit #creditcard #programming #reference #tools