Edmonton police are reaching out to anyone who believes they may have fallen victim after 22-year-old Cynthia Burt — supposedly working under the name “Sable” or “Sabrina” — allegedly “exploited the complainants’ vulnerabilities to convince them to pay ever-increasing amounts of money” for crystals that were supposed to remove negative energy, according to a news release Tuesday.

The psychic, from her business Sable Psychic Studio, is accused of selling her clients a special crystal procedure for thousands of dollars, promising their money would be refunded after it was performed. The money, police allege, wasn’t returned.