Typical Universal Life Church scam. What she is doing is black mail and it is illegal. Find out here real name and address and threaten to call her local police if she continues harassing people.
If you really do need to call the cops on her have as many other people who have been black mailed by her call as well.
Most pagans find it unethical to sell services, whether it's spells, prayers or anything else, excluding tarot readings and other fortune-telling. Also, anything involving dark magick is hard to come by, since practitioners of dark magic are to paganism as Satanists are to Christianity. That point being that she could be full of hot air and just be attempting to make up a spell, or just completely BSing.
Furthermore, in Wicca, there's the Three-fold Law, which simply put is "you get back three times what you give." That applies to all things, good and bad. Also, the use of dark magick can involve interactions with malevolent beings, which is dangerous to all involved.
Along those lines, it at least involves involving oneself with negative energies, which can very easily affect the caster as well as the cursed. Hope all that helps.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.