I want to sell access to a page with booking form on a per use bases using the redemption coupon code. The idea is to ensure each access to the page, user has to pay (with coupon or paypal). How can I test if a user has used a coupon so that I can display a pro form or not on the selling page?
What I am after is a way to sell access to the booking page using redemption code coupon and make the page only accessible through one time use coupon. Once the coupon is used, the booking page is again protected until purchase or gifting of a new coupon. Hope this clear.