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
- For calls outside
the United States
- MAILING
- 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 800-234-5354 if you have
further questions.
- IF YOU SUSPECT FRAUD:
Call 800-234-5354 immediately to report any
fraud. Complete the Fraud Affidavit and mail to:
- Mail:
MasterCard Fraud Dept.
PO Box 10409
Des Moines, IA 50306-0409