PartyPoker $500 sign up bonus?

[BewilderBeast]

Hi, I signed up with partypoker through the affiliate thisisthenuts.com to avail of the $500 sign up bonus on a $500 first time deposit. The bonus requires 12500 raked hands to clear. I was wondering however, will the bonus be affected if I withdraw some of my partypoker funds?
The first $100 of this bonus is received like the normal 20% sign up bonus(after 500 hands), and the other $400 on completion of the 12,500 raked hands just to clarify.
Any help is much appreciated.