If prompted with a Call authorization response, voice authorization is required. Call the voice authorization phone number to provide additional information to your customer's issuing bank, so they can decide to approve or decline the transaction. Select the phone number for the card type and the program you participate in, and then follow the voice authorization steps.
- Visa, Mastercard, and Discover Merchant Acquiring Program (MAP): 1-800-291-4840
- Discover iMAP/Direct: 1-800-347-1111
- American Express OptBlue, External Sales Agent (ESA) or Direct: 1-800-528-2121
- American Express (Amex) OnePoint (ESSP[a]): 1-866-976-7211