You are most welcome to contact us through the following channels：

• Services Hotline: 888 95566
• Mailing Address: G.P.O. Box 447
• E-mail : its_mac@bank-of-china.com (each e-mail should be less than 10MB)
• Visit our sub-branch (Click here to view)

We will follow up your comment immediately. In case of complaint, based on "Guideline on Handling of Customer Complaints" of The Monetary Authority of Macao. We will send an acknowledge receipt to you within 10 working days and strive to provide an response to you within 30 days.