Usually when a provider and hobbyist have not met, the donation should be taken care of first. The lady should not ask but the guy should just place it in an envelope where it can be well viewed (most ladies have this as a requirement on their personal websites, etc.).
If she does not and it actually gets pulled off, I would guess if you are lucky the lady will post an alert and make sure every provider here and on other boards not to see you or trust you. If you are unlucky well the situation could turn uglier.
As Velvet mentions, you are probably already on plenty of ladies "do not see list" just by posting this. Wonder what you are trying to do since you have posted about ripping off providers in another area. Either you are trying to figure out a way to get away with ripping off the ladies or you are just trying to agitate the boards.
Here is the previous post on ripping off providers:
http://eccie.net/showthread.php?t=134141