We run a subscription site with four different durations: monthly, quarterly, semi-annual and annual. We offer a 7-day free trial. I have two questions about how to handle two separate problems: - I find some users who order the free trial and cancel, over and over again. How can I prevent this? The Trial Group seems to be the answer, but the available documentation is not very clear. - We would like to offer coupons on the month, quarterly, semi-annual and annual subscriptions. But it seems as if this is not possible when you sell a recurring product with a free trial. Is that right? Thanks very much.