{
  "card_declined": "The card was declined.",
  "expired_card": "The card has expired.",
  "incorrect_cvc": "The card's security code is incorrect.",
  "incorrect_number": "The card number is incorrect.",
  "incorrect_zip": "The card's zip code failed validation.",
  "invalid_cvc": "The card's security code is invalid.",
  "invalid_expiry_month": "The card's expiration month is invalid.",
  "invalid_expiry_year": "The card's expiration year is invalid.",
  "invalid_number": "The card number is not a valid credit card number.",
  "missing": "There is no card on a customer that is being charged.",
  "processing_error": "An error occurred while processing the card.",
  "rate_limit": "An error occurred due to requests hitting the API too quickly. Please let us know if you're consistently running into this error."
}