Whenever someone makes demands, for example money, based on supernatural claims that cannot be proven objectively, it's time to pause and think things through very carefully.
Firstly, I would add to what rrmoderator has stated. Check with your local (state/province) jurisdiction on this. In my state in the US, this sort of "cleansing of money" is recognized as a crime and is punishable with jail time...and yes, I have seen it happen on at least two occasions, so contact the police immediately and don't
give these frauds your hard-earned money.
Secondly, to Tina5 who started this post, I hope your son is okay and am sorry to be posting so late. Have you had your son medically checked out for Schiziophrenia? At his age this could be a factor. While there is no current satisfactory treatment for this difficult disorder, there are promising modalities on the horizon. Good luck and good health.