3 ms·

Allowing purchases with an expired credit card isn't really a bug, it's sometimes a "feature". If it was valid when the credit card was added to the account, a

• jacquesm 13y ago
  > and then the credit card companies will often allow payments to go through, even after it expired. False. The credit card companies will let the payment through based on the number alone as long as you present an expiry date in the future. But it's illegal to continue to charge past the expiry date of the card for recurring payments after the date that was entered when the subscription started, and you're not allowed to change that expiry date yourself without the customer presenting the card again, with the new expiry date. (It's really easy to guess though, just set it 5 years into the future and that's a pretty good stab at getting it right). The reason why it works is because you'll get a new card, with a new expiry but with the old number. Still, doing this is against the TOS. Easy to do, not proper and very very bad form towards the customer and the card company. Stuff like this can cost you your merchant account if a customer decides to take it as far as they can. You are not just making charges on behalf of the customer here, this is a form of fraud by the merchant.