Concerning Tournament Prizes (Donations)

Hi, I've started a tournament and would like to award a premium membership to the winner. I originally intended to give a 6-month premium to the winner, which would be matched by the staff on CC, but I was told I couldn't award less then 1 full year myself.
Could someone clarify this issue for me? And if it's true that I must give a year myself this time, could I give 6 months using the credit I have matched in the future?
Thanks!
Could someone clarify this issue for me? And if it's true that I must give a year myself this time, could I give 6 months using the credit I have matched in the future?
Thanks!
