If you noticed you only got 25 SC and 260,000 GC after signing up with the code BUKSOCIAL, that's normal. Rest assured your 5% rakeback is activated, and that you'll start collecting your rakeback after you start wagering. As for the remaining 25 SC, you'll have to collect that as part of your daily login for the next 30 days, which gives you 1 SC every day you log back in.