From the "Account" tab on our front page, under Affiliate Credits, click on the "Redeem credits for cash" link. Simply follow the instructions from there. You will be paid via a PayPal payment, so it will make the process go faster if you already have a PayPal account set up.
Note: You will be charged a $2 processing fee to redeem account credit. If you redeem $14.20, for example, you will actually receive $12.20. There will be no other fees imposed by us or by PayPal.