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Comments and suggestions

Professional Cardmembers:

  • Cardmember Customer Assistance
  • Lost of Stolen Card

1-800-2-DINERS
(1-800-234-6377)

Outside the U.S.:
1-514-881-3735(collect)

P.O. Box 6101
Carol Stream, IL 60197-6101
USA

Corporate Cardmembers:

  • Cardmember Customer Assistance
  • Lost of Stolen Card

1-800-2-DINERS
(1-800-234-6377)

Outside the U.S.:
1-514-881-3735(collect)

Client Services
P.O. Box 6138
Carol Stream, IL 60197-6138
USA

TTY Service for Hearing Impaired Customers

Professional Cardholders
1-866-889-0889

Corporate Cardholders in U.S. and Canada
1-866-859-2089
(Outside of North America)
1-800-976-6037

Payment address

Diners Club Professional
P.O. Box 6012
Carol Stream, IL 60197-6012
USA

Diners Club Commercial
P.O. Box 5732
Carol Stream, IL 60197-5732
USA

Overnight payment address

BancTec Inc. c/o BMO Harris Bank
2012 Corporate Lane, Suite 108 
Naperville, IL 60563

Attention:
P.O. Box 5732 – Commercial or
P.O. Box 6012 - Professional

Wire transfer payment information

Bank Name: BMO Harris Bank N.A.
Account #: 1982143000
Account Name: Diners Wire Payments

Address:
111 W. Monroe
Chicago, Ill 60603

ABA: 071000288
Swift code: HATRUS44
Payable to: Harris/Diners Club, Include name/account#. Cutoff time is 2:00pm CT

Internet Help Desk

1-877-263-5018
(Mon-Sun, 24 hours a day)

Information Product Help Desk
(for Corporate Program Managers)

1-800-643-7772
(Mon-Sun, 24 hours a day)

Club Rewards Customer Contact Centre

Inquiries, redemptions:
1-800-234-4034
Mon - Sun 9:00 a.m. - 9:00 p.m. (ET)

Attn: Club Rewards Management
P.O. Box 6140
Chicago, IL 60197-6140
USA

MasterAssist

1-877-764-3576

Outside the U.S.:
904-636-3647 (collect)

Primary Collision Damage Waiver Coverage

1-877-764-3576

Outside U.S.:
904-636-3647 (collect)

Purchase Assurance and Extended Warranty – Inquiries and Claims

1-877-764-3576

904-636-3647 (collect)

Worldwide Automatic Travel Accident Insurance / Contact numbers

1-877-764-3576

904-636-3647 (collect)

RoadAssist Roadside Service

1-877-764-3576

904-636-3647 (collect)

Business Service Representative
(for Corporate Program Managers)

1-800-964-9444
(Mon-Fri, 8 a.m. – 8 p.m. ET)

Corporate Sales Group

1-800-999-9093

Professional Card Collections

In Canada and the US: 1-888-551-4881
(Monday-Friday 8:00am – 8:00pm ET)

P.O. Box 6002
Carol Stream, IL 60197-6002
USA

Corporate Card Collections

In Canada and the US: 1-888-551-4667
(Monday-Friday 8:00am – 8:00pm ET)

P.O. Box 6002
Carol Stream, IL 60197-6002
USA