False accusations

I am a 23 year old man who entered the working world in the beginning of the year. I work as a full time environmental practitioner at a global environmental consulting firm. when I app**** for an Edgars account on the 8th of August this year, they told me that they will let me know if the account was approved or not on Monday, and if not, why. I receive no notice on Monday, and go to the Edgars the following Saturday (15th). I ask what the status of the account is. They then tell me that the application has been declined because there is too much movement with my money and they THINK I may be involved with money laundering. That is a very serious accusation and borderline defamation, and one that stands on no evidence whatsoever. I am stunned that they would accuse me of it without being able to tell me why they think so. Movement of money is a regular occurrence for someone who is working, and if they are able to see that my money is moving they will be able to see where it comes from and where it is going. I find this completely unacceptable and insulting, and at the very least I expect a proper apology.