Need us?
Here’s how to reach us.
When you call us please have your American Express Merchant number on hand. To protect your details we will ask you some security questions, to ensure we are speaking to an authorised person for the merchant account number provided.
Merchant Customer Service: 0800 800 855
Monday to Friday, 9.00am to 6:00pm
Card Authorisations & Fraud: 0800 800 855
24 hours, 7 days a week
Terminal Troubleshoot: 0800 800 855
Monday to Friday, 9.00am to 6:00pm
Branch Additions/New Business: 0800 800 855
Monday to Friday, 9:00am to 6:00pm
Travellers Cheque Authorisations: 0508 555 358
24 hours, 7 days a week
Written correspondence
American Express International (NZ) Inc.
Merchant Services
PO Box 2909
Shortland Street4
Auckland 1040
American Express
PO Box 2909
Shortland St
Auckland
1140
