Email Us

For OneKey-related matters, please email us at

For Online Service Provider or Corporate-related matters, please visit our corporate website at

Help Desk

If you wish to speak to one of our Help Desk officers, please call our Hotline at (65) 6566 3539 (OKONEKEY). We are available 24/7 to serve you better.

Customer Care Centres

Letter of Authorisation

You can authorise someone to collect your PIN mailer and token (if selected) on your behalf. The authorised person must bring along the letter of authorisation, both parties' original NRICs/FIN cards and the authorising person's mobile phone if SMS OTP is the preferred 2FA method.


International Plaza

10 Anson Road
#06-14 International Plaza
Singapore 079903

PSA Building

460 Alexandra Road
#28-04 PSA Building
Singapore 119963

Operating Hours:

International Plaza

Mon - Fri
8:00 am - 6:00 pm
8:00 am -2:00pm

We are closed on Sundays and Public Holidays.

PSA Building

Mon - Fri
8:30 am - 6:00 pm
8:30 am -2:00pm

We are closed on Sundays and Public Holidays.

OneKey for Visually Impaired Individuals

Visually impaired individuals can register for the customised OneKey through the Singapore Association of the Visually Handicapped. For more information, click on "For Visually Impaired Individuals" in our FAQs section.

Data Protection Officer

Under the Data Protection Act, organisations are required to provide the contact details of the officer responsible for ensuring compliance with the Act. Our data protection officer can be reached at