I also have a few of the same issues using WordPress MU. Overall, the plugin is great. However, there are a few minor bugs:
- When adding a new voucher, if user requires a valid email address be provided before download then the server sends back the error, “Sorry, that item was not found”.
- I have also received a message to the affect of the item running out. However, I cannot provide the steps required to recreate the message.
- The date the coupon expires should be automatically printed on the coupon in the same manner as the serial number.
- The serial numbers should be available for download in a spreadsheet or CSV in the same manner as the email address
I know you have probably already received many statements to the same effect before. Really, a great plugin!
Thanks