Customer Solutions
Phone

Within Australia: 1300 361 958
International: +61 3 8807 6609 

Fax
Within Australia: 02 9842 3979
International: +61 2 9842 3979

Complaints

Mail
GO Business MasterCard Customer Solutions
GPO Box 1007
Melbourne VIC 3001

Hours of operation

Monday - Friday: 8:30am - 7:00pm
Saturday: 9:00am - 5:00pm
Sunday: Closed

Times shown are Australian Eastern Standard Time (AEST) 

Lost and Stolen
Call immediately: 24 hours a day, 365 days a year
Within Australia: 1300 368 125
If overseas, call MasterCard Global Service on +1 636 722 7111

Go Business Rewards
Within Australia: 1300 788 242
Monday - Friday: 8:00am - 9:00pm (AEST)
Saturday - Sunday: 9:00am - 5:00pm (AEST)

MasterCard Global Services
Call (+1) 636 722 7111 for assistance with emergency cash advance,
emergency card replacement or world wide ATM locations, 24 hours a
day, 365 days a year.