champions pack problems

Was wondering if anyone has any idea?
I had the champions packs all downloaded and unlocked, good times. After scrolling through my created fighters I thought that my Christian Mijarez looked like a New Zealander so I decided to delete him and do a new one (which incidentally looks much better). When I returned to the Fight Now screen, all the C.P fighters were locked as were the new options etc. And I really can't find any way of unlocking!
Anyone able to help me in this predicament?