Did my biometrics on 13th of march 2012.does anyone know when i wil receive my psw and the docs roughly?wat is the estimated timeframe?does one fall in the same situation as me?pls help

Hey i posted my psw application on 26th jan and received my acknow. Letter after 3weeks.it has been 3weeks now from then and i have not yet received my biometric letter.im worried can someone advice me?is there anyone in the same situation?is there anything i can do?