Hi. I'm not sure if I missed something. When I first joined, I accumulated quite a bit of credits and the last time I downloaded a cover, I still had a lot left. Now I find only 4 credits (I just used 1, so I'm down to 3) What happened to all the credits I accumulated? Was there a time limit in which to use them, or were they removed when the new R1DB site remodeled. Please explain so I don't lose anymore. Thanks.