If anyone asks for money to “teach you Torah” 

or “teach you Kabbalah”, RUN don't walk.

Those who have been authorized by God to teach Torah are also provided with a life that doesn't require them to sell it or deal in any kind of questionable business. Ever.

There is no such thing as a professional Kabbalah teacher, or even rabbi.

The selling one's specialized knowledge by the hour has quite another name.