Whenever we set credit card details through the API, and input a 2-digit expiration year (as instructed by the docs), the year end up with leading zeros stored in the database – i.e. 00XX instead of 20XX.

For example, if we input '18' for the year and '08' for the month, the credit card expiration year saved to the database will be 'Mon, 01 Aug 0018'.