ENTER COUPON CODE INSTEAD OF PAYPAL

Hello, I have been looking into purchasing s2member for a client who needs users to enter a coupon code (as provided by a Groupon type company) for a pre-sold product alongside/instead of the Paypal functionality to access paid membership pages. Is there any way to simply implement this with s2member Pro?
The set up ideally would be:

user is sent email with link to registration page and a coupon code > user registers > Membership Options Page with list of products and Paypal butttons plus form to enter the coupon code instead and access level 1/2/3/etc paid membership pages (so no need of accessing Paypal for payment) > paid membership restricted page

Many thanks

Hi Ivano.

s2Member’s coupons don’t do 100% discounts yet, the user would still be charged at least 1 cent. If you want to do this kind of thing, you could code your own coupon verification code, so that the user enters a coupon into a form you created, and you’d have to have a list of coupons given in your system, and if the coupon is valid, show him a free registration form that gives him paid access, and once registration was successful, remove that coupon from your list because it was already used. s2Member Pro has the free registration pro-form to register users at higher levels than 0 for free.

I hope that helps.