Recurring payments (that scary thing!)

Dear Treehouse staff, I filled in my payment method with a card (which I will call the 1st) but I realized it was empty. Hence I set up a payment via a 2° card because I needed that card to pay the course for the current month (and the current month only). Now that I changed the payment method back to the 1st card (that I am planning to use for the time being), what will happen to the 2nd card? I am asking this, because, rather unexpectedly, I found 2 (TWO) recurring payments applied to my 1st card which, I am pretty sure, would have translated into two bills ($25 * 2) occurring the same month if I hadn't ever paid attention.

1) Does the 1st card still have a recurring payment formula applied to it?

2) Is there a way to pay every month manually without setting up an automatic payment (which is something scary, I have to tell you)?