Paypal: How to Delete Administrative eMail address

you need to go to: https://www.paypal.com/us/cgi-bin/webscr?cmd=_profile-logins-change-admin

(You may need to log into your PP account). Click on the drop down list of email address (or add a new one) and then click onto continue.
Note: if you are trying to change your administrative address to an address that is currently your primary address, you will have to change your primary email address first.