To change the payment date (or amount) just cancel the current request (Dashboard > Balance tab) and submit a new one with the desired date. 

For your FIRST withdrawal, the payment date is set to net60 by default and cannot be changed. 

After your first withdrawal has been processed, you can submit additional requests any time you like (but at least 48 hours prior to the target date). 

Payments may be subject to early withdrawal or manual processing fees if they fall outside our standard payment terms.