Contact Us Please complete the form below to get in touch with DIFFA Chicago. Please enable JavaScript in your browser to complete this form.Your NameFirst Name *Last Name *Contact InformationEmail *Phone *Message *Are you a Member? *YesNoContact Us DIFFA Chicago 222 W Merchandise Mart Plaza Suite 1445BChicago, IL 60654 Contact Us (312) 644-6412 info@diffachicago.org