Credit Service International Credit Service International Search | Advanced Search | New Members | Coupons and Discounts | All Categories Finance & Insurance >> Collection Agencies Credit Service International 314 W. Superior Street, Ste 314Duluth, MN 55802 (218) 210-0901 | fax: (715) 386-7200 Visit Site Connect With Us Send a message to: Credit Service International Your Name: Your Email: Subject: Message: (Date: 1/26/2021)