OnePay’s Service Support

We’re here to help whenever you need.

1900 633 927

Frequently asked questions

What is the process to register for service from OnePay?
  • You need to provide the Business license and bank account number.
  • In addition, depending on your business type, OnePay may require additional relevant licenses and documents.
What kind of fees?
  • Fees include registration fees, monthly fees, and transaction fees.
  • Please contact the OnePay sales department for more information.
How does OnePay support integration?
  • OnePay platform is available on many popular platforms such as WordPress, Magento, Shopify,…
    Depending on the website language, OnePay will provide suitable technical information for integration.
  • For details, please contact us at
What are solution of OnePay to ensure card information security?
  • OnePay processes online transactions securely on the internet. Card information is protected during transactions using the TLS protocol. The TLS protocol encrypts card information during the transaction.
  • In addition, OnePay also uses many other software and algorithms to ensure data security.
Does OnePay have tools to manage transachtion risks?
  • OnePay uses both manual and automatic transaction scan tools to manage transaction risks effectively.
How does OnePay process with chargeback?
  • Merchants must present bills or invoices to prove their goods or services provided.
    To avoid risks, the merchant’s Terms & Conditions for supply goods must clear on the website.
  • OnePay will advise merchants on the risk managing process and disputing procedure.
Why did the transaction fail?
  • There are many causes of transaction failure, such as cards without online payment function or the decline of issuing banks…
  • Please contact OnePAY customer service or the issuing bank for detailed support.
How do I register for online payment?
  • For domestic bank cards, Cardholders must register online payment services with the issuing bank before performing transactions.
  • Please contact the Bank for the most detailed support for the service.
What do you have to do if you don't receive payment result?
  • After completing the payment steps as instructed, if you do not receive payment results after 1 minute, please contact the website or the application you just paid or OnePAY’s customer service department for detailed support.
How long does the refund take?
  • Depending on the card type, the refund usually takes from 5 to 10 days.
  • Please contact OnePAY customer service or the issuing bank for detailed support.
Is card information secured?
  • OnePAY compliance with regulations set by State Bank of Vietnam and International Card Organizations on the security of card information. Card information is secured throughout the transaction process using the TLS protocol. TLS protocol encrypts the card information during transactions.
  • Also, OnePAY uses many different software and solutions to ensure data security.