Neopets Premium - The Referral System
A big thanks to Suzuka (togepi_forever) for keeping us updated!

All Premium Users are now able to refer up to twenty users to Neopets Premium. Once all your referrals have been used, if you have one that has not signed up, you may remove them from your referrals and refer another user. You may continue doing so until all your referred users have signed up past the 15-day Trial Period.