It doesn't work like that. You have to get enrolled with different signature campaigns. They will come and go every week or month and so on. The lay rates would be different for each of them and you can not expect higher payments for junior rank. You must keeeo working faithfully for now to increase your rank and DT trust so that you will get hired in good campaigns with high pay rates. Your posting quality matters in regard with hiring procedure. So better focus on the posting first then think about the high pay outs. ;-)