I need a wordpress plugin licensing system for a new plugin that I am about to release. I need to issue either a single license or an unlimited license, and generate a key that is emailed automatically to the customer. I need the ability to remove the client from the database if they decide to request a refund on the plugin purchase.
I also need the ability to add new plugins as I expand my product line.
The plugin will be accessed by customers from a secure Wishlist Member or Digital Access Pass membership site.