Directory of Assurant Phone Numbers & Global Addresses | Assurant Health and Welfare Plan. Toll Free Number: General for USP, St.Petersburg: 1-800-283-0785: TWG: 1-800-621-2130: American Collectors: 1-800-360-2277: Geico: 1-866-344-2527: TWG: 1-800-621-2130: Fair: 1-800-584-5000 claims: 1-877-900-0345: All others: 1-877-900-0345. We've created a directory with all Assurant phone numbers to help you receive at touch with us, whether you are watching for file one claim otherwise just need until contact usage.