I already have a SHOWTIME subscription that I bought on Showtime.com. Why do I have to re-enter my payment method to purchase the PPV event?

Since the PPV event is not included in your SHOWTIME subscription, the first time you make a PPV purchase on showtime.com you’ll have to enter your payment method of choice. You will not have to re-enter your payment method to purchase subsequent PPV events offered on showtime.com, unless your previous payment method is no longer valid.