If you read at the bottom of the FAX that comes through, there is both an email and a phone number to be removed from the list.  I tried the email twice, no help.  But I called the 866 number 1-(866)-282-8543.  There is an automated attendant that you can enter your fax number in for removal.  At the end, it said I was successfully removed.  I guess we will see!  This is a company called Assurance Trainers that does QuickBooks training.  For the life of me I can't see why a computer training company is still using a fax like it was 1991.