this has happened to me too.if you have won any credits in a skins game it will show up in your account but you cant use them .not in a skins game or the pro shop .but far as the box saying you dont have credits to play that went away for in 2 days ,then after it goes away you can join a skins game minus the credits you have won in a skins game .ive won over 600 credits today ....i cant play skins or buy balls with them .but maybe just maybe they will fix this problem .