How appropriate and ironic that her name is Marks.
mark....noun. A person identified as an easy target, or "sucker". A mark is always the short end of a joke or scam, and is never let in on what's going on. A mark is usually being cheated out of money. Definition from the urbandictionary.
Here is a quote from a recent article at newsplex.com.
"According to the indictment, victims from several states wired Marks money, in some cases, hundreds of thousands of dollars."
So, what does it take for someone to be conned and scammed by a so-called psychic? With or without the help of confirmation bias and cognitive dissonance, you'll have to believe:
There are people who can see into the past and future.
There are people who can detect curses.
There are people who can remove curses.
There are people who can cleanse your money (whatever that means).
There are people who can communicate with the dead.
These so-called psychics can be dangerous to your health, finances, and emotions. Take a look at "What's the harm," for examples.