Got an email from MPC today (link as below) and looks like the service fee is reduced from USD 90 to 50.

Not sure if i interpret this right. Currently I have used up all spaces on my nominee list. Assume I drop 3 names (Amy, Ben and Calvin) out and when I register new nominees later, will i still be charged the service fee?
Or if I decide to add Ben back to my nominee list, will I need to pay the service fee. Anyone who is able to shed some light? Thanks
https://www.cathaypacific.com/cx/en_HK/frequent-flyers/offers-and-updates/offers-and-updates/updates-details/Asia-Miles-Redemption-Group-terms-and-conditions-updates-for-Marco-Polo-Club-members.html?cm_mmc=ESUM-CX-_-ES00NE1604-19JAN16-_-10981-_-CXEP&emid=Rx+8XebZpvVh8dAtj6cZLuHd/TvSsIQSkuhBcbfBC3c=