Online conversation service

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  • text service time: 24 hours a day/ 7 days a week.
  • Transfer to real customer service: 07:30~23:00, Mon. to Sun.
  • Content/Range of the service: this service is now only provided with information that is not included any privacy term. (e.g. advice with financial instruments that provided by CUB, marketing campaign , additional promotion in credit cards. )
  • To prevent others track or stole your personal information, please do not enter any private details (e.g. ID number, credit card number or password) when talking with text service.
  • Please do not transfer any illegal message or the information that is not related with CUB while using the service, CUB has the right to cancel sending information out of the range of the service.

Global Website Hotline

Talk with our representative

E-mail messaging

Welcome to the Cathay United Bank website. If you have any questions or recommendations regarding the products or services we provide, please provide your valuable opinions so that we may make the corresponding improvements. Reminder: for urgent requests (such as loss of credit card), please call our 24-hour customer service center (dial service hotline 02-2383-1000 or 0800-818-001 for local calls). Additionally, in order to improve service quality and ensure the fastest response and handling of your problems, please provide your personal information (* represent mandatory sections) as well. Thank you!

  • • Personal identification numbers
  • *Name
  • *Contact number
  • *E-mail address
  • Are you a client of Cathay United Bank?
  • *Message

  • *Verification code

Telephone voice message services

Telephone voice message service hotline:

02-2383-1000 or dial 0800-818-001 for local calls
Use the following keypad entries or refer to the voice reminders to acquire relevant data from our convenient automated voice call services.

Quick combinations for voice call services

Credit card services

  • Credit card loss: Press 6-1
  • Check total expensesPress 2
  • Costco co-branding cardPress 5
  • Register with credit card campaignPress 8

Bank services

  • Credit card lossPress 6-2
  • Check / fax your account balance
    in Cathay United Bank
    Press 1-1-1
  • Enter account number to check remaining balancePress 1-1-5
  • Check / fax information on outstanding checksPress 1-1-2-2
  • Transfer funds from your New Taiwan Dollar account
    in Cathay United Bank
    Press 1-2-1
  • Transfer funds to other New Taiwan Dollar accounts of
    other banks
    Press 1-2-2