Ok so I have some legit game keys that I want to content lock. Basically, what I want to happen is this: landing page --> visitor chooses what game he wants --> completes a survey --> gets a key My problem is how do I properly send the key to the visitor who completes a survey? I want to make sure each one gets a unique key. Any suggestions/ideas? I also want to try this approach on PPD but I think it's not possible.