it depends on the site, lock for example has taken about 3 months with no joy, if the cashout was successful youd of recieved an email from skrill to say the account has been credited as well as an email from merges money brokers to say again the money has been processed etc, i have a funny feeling that your at the processing stage, if i were you id ship merge another email and ask them where your money is/what stage of the withdraw process you are at
if your after fast cashouts though id advise sky (4-5 working days for a cashout direct to your bank account) the play is terrible and the traffic is almost none existent though