Looking for plugin that will email Vouchers

[ Moved to the Fixing WordPress sub-forum. ]

I am looking for a plug in that prompts a person to enter certain information in order for a voucher to be emailed to them or is downloaded immediately. Each voucher needs to have it’s own specific code so that it can only be redeemed once. There is no cost for these vouchers, so I don’t need any type of pay system integrated into it. If a pay system is integrated, I need the option to bypass it. I found the plugin Voucher Press which supposedly does everything I need it to, but it hasn’t been updated in a year, and it seems to have some bugs. I also need it to be free or minimal cost.

Any suggestions?