I've set my coupon amount to give visitors 100% off, so 0 dollars is being charged. After the visitor enters their CC info, and subscribes, a red warning bar appears at the top of the page saying invalid payment. In the admin, the visitor is in "pending" mode. I've had one visitor enter their info several times and it went through as "free offer" in the payment history in admin and they were able to log in. I'm using merchants anywhere as the processor. I just did a mass mailing and need the issue fixed asap. Any help is greatly appreciated.