I would like to start a referral program on my site. I would like to include a form on my site that would allow users to include their contact info and the contact info of who they are referring. On top of that I would like form to generate a unique number or reference number for that user that would be emailed both to them and us. This way I could include that number in our contract (assuming the deal goes through) and make sure that person gets paid. Any help with this would be great.