Customer Service
Canada
Customer Service
In Canada and the U.S.: 1 8 0 0 3 6 3 3 3 3 3
Elsewhere, call collect: 1 5 1 4 8 8 1 3 7 3 5
Toll-free fax: 1 8 5 5 8 0 3 7 3 4 2
Diners Club
P.O. Box 5000 Station F
Toronto, Ontario
M4Y 2T1
Lost or stolen cards
In Canada and the U.S: 1 8 6 6 8 9 0 9 5 5 2
Elsewhere, call collect: 1 5 1 4 8 8 1 3 7 3 5
Corporate Program Administrators
Monday – Friday: 8a.m. – 8p.m. (ET)
1 8 0 0 6 6 3 1 5 2 7
Email:
dinersclub.service@bmo.com
Corporate Sales Group
Contact Corporate Sales Group: bmo.tps@bmo.com
Club Rewards Customer Contact Centre
Monday – Sunday: 9a.m. – 9p.m. (ET)
Inquiries, redemption: 1 8 0 0 6 6 3 9 7 9 8
In Canada and the U.S.: 1 8 0 0 3 6 3 3 3 3 3
Elsewhere, call collect: 1 5 1 4 8 8 1 3 7 3 5
Toll-free fax: 1 8 5 5 8 0 3 7 3 4 2
Diners Club
P.O. Box 5000 Station F
Toronto, Ontario
M4Y 2T1
In Canada and the U.S: 1 8 6 6 8 9 0 9 5 5 2
Elsewhere, call collect: 1 5 1 4 8 8 1 3 7 3 5
Monday – Friday: 8a.m. – 8p.m. (ET)
1 8 0 0 6 6 3 1 5 2 7
Email:
dinersclub.service@bmo.com
Contact Corporate Sales Group: bmo.tps@bmo.com
Monday – Sunday: 9a.m. – 9p.m. (ET)
Inquiries, redemption: 1 8 0 0 6 6 3 9 7 9 8