If you are also getting buttloads of junk mail from these freaks, do this:
There is a USPS "Prohibitory Order" form (ps1500) you can obtain either on-line (see link below) or at your post office. This is for sexually explicit, provocative, or obscene mail. HOWEVER, and this is the key, only YOU get to decide what is OBSCENE......and the Post Office MUST comply, even if they feel the mail is not sexually explicit. :hysterical :
This link http://www.usps.com/forms/_pdf/ps1500.pdf takes you to the Prohibitory Order Form (ps 1500) and provides more details.
Mail it to the New York office address, if you give it to your local post office it may get lost or misrouted. Works well in telling the cult to F*ck Off.