Not a problem 
I wish I had a better suggestion for a way to get this information. As far as getting the card expiration date, you should be able to query on the CreditCard table to get the credit card expiration month and year. You may also be able to leverage the “InvoicePayment” table to look at the “PayStatus” to get the failed payments.
I have submitted a ticket to our product manager for the retrieval of the selected card on a payplan to be added in the REST API.