To comply with National Bank of Cambodia’s regulation concerning Customer Complaint and Customer Protection, please express your opinion or make comment verbally to Customer Service staff at branch or through Tel: 023 221 971.

Customers can also address a written letter and drop in customer complaint mail box​ at counter at each branch or send email to by notifying information below:

  • Customer or representative’s name
  • Customer’s address
  • Customer’s contact number
  • Date of complaint and time
  • Purpose of complaint.

CMK will try our best to find suitable solution for each complaint in 2 days for verbal complaint and 30 days for written letter.



Department of Customer Complaint