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 1-855-341-4652 immediately.
  • PHONE
    • Customer Service
        • 1-855-341-4652
    • For calls outside the United States
        • 00-1-515-457-2082
  • MAILING
    • Payment address
        • Credit Union of Texas
        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 MasterCard Dispute Form and mail to:

    • Mail:
        • MasterCard Disputes
        PO Box 10409
        Des Moines, IA 50306-0409
      You may also call our customer call center at 1-855-341-4652 if you have further questions.
  • IF YOU SUSPECT FRAUD:
      • Call 1-855-341-4652 immediately to report any fraud. Complete the Fraud Affidavit and mail to:

    • Mail:
        • MasterCard Fraud Dept.
        PO Box 10409
        Des Moines, IA 50306-0409