Contact Us

We are happy to assist you. If you have a general question regarding your credit card account, please review our Frequently Asked Questions. Otherwise, contact us by phone or mail.

  • LOST AND/OR STOLEN:
      • If you suspect your card has been lost and/or stolen, please call our customer call center at (800) 234-5354 immediately.
  • PHONE
      • Customer Service
        (800) 234-5354
      For calls outside the United States
        00-1-515-457-2082
  • MAILING
      • Payment address
        MembersAlliance CU
        PO Box 37035
        Boone, IA 50037-0035
  • DISPUTE A TRANSACTION:
      • If you do not recognize a charge or feel you were billed an incorrect amount, please follow these three steps.
      • First, double-check your receipts and check with other authorized users of your card.
      • Second, contact the merchant where the purchase originated.
      • Finally, if you are unable to resolve your dispute with the merchant, complete the Visa Dispute Form and mail to:
        • Mail:
            • Dispute Department
            PO Box 10409
            Des Moines, IA 50306
      You may also call our customer call center at (800) 234-5354 if you have further questions.
  • IF YOU SUSPECT FRAUD:
      • Call (800) 234-5354 immediately to report any fraud. Complete the Visa Fraud Affidavit and mail to:
      • Mail:
          • Fraud Department
          PO Box 10409
          Des Moines, IA 50306