Pay Your Bill If your policy is written with one of the following companies, you may make an on-line payment by clicking on one of the links below. Who sent you your bill? AAA Allied Auto Owners Insurance EMC Insurance Companies Grinnell Mutual IMT Progressive Travelers United Fire West Bend Mutual (If you do not see your carrier listed here, on-line customer payment options are currently unavailable for that company.) Have an Agency Bill? We do not have an on-line payment option for our Agency Bill customers at this time. You may mail your payment along with your Agency Bill payment stub to the following address: Independent Insurance Services PO Box 248 Marshalltown, IA 50158