I periodically receive e-mails from people that tried various schools and were disappointed with the outcome. Yes, unfortunately there are many so called “guides/teachers/Ravs” that use the name of Kabbalah to promote their personal agenda. It’s therefore VERY hard (to almost impossible) to find a reliable Rabbi that can teach you authentic Wisdom of Kabbalah, rather than attract people with mysticism.
That said, this situation isn’t abnormal and can be understood. Baal HaSulam writes in the Introduction to Talmud Eser HaSefiros that when people focus on mechanical execution of commandments (i.e. when they forget that key the point of performing a commandment which is solely to change oneself and to get from the state of lo-lishma to li-shma, and simply perform mechanical actions wihtout any kavana to support their original goal), study open torah in similar fasion and ignore the wisdom of Kabbalah, the spiritual energy that they generate not only doesn’t help them and the world, but on the contratry – goes from Kedusha into Klipa forces. And therefore such organizations will keep being successful and will only prolifirate until people turn to the authentic Kabbalah and focus their efforts to convert their current state of lo-lishma to li-shma.
I found this thread to be quite useful – and therefore recommend it to people who want to find out more about such schools: http://forum.rickross.com/read.php?12,34154,34204#msg-34204
Please be careful, and do remember that while Torah (and Kabbalah of course) is a medicine, this medicine must be used with the prescription that goes with it, otherwise as with other medicine it will turn into poison “Sam HaHaim/Sam HaMavet”.