I have been getting notices that my credit card is declining.  How can I
change my card info?

You can either write to www.stephaniemiller.com/support and ask to have the
card canceled, or you can wait out the notices until the subscription
cancels.  Then to re-up, you log in to your account and scroll down a bit
to “membership level” and hit “upgrade”.
On the next page select the subscription you want, then “next”.  Next page
hit the “FIRST DATA” logo, then it takes you to the payment page.