How can I change my credit card details?

ZONE Telecom > General > Billing
To update or change your credit card details, please use the following simple steps: 
 
1.    Go to our website at http://www.zonetel.com.sg.
2.    Click on the “Members Login Here” to login.
3.    On the Left Side under My Membership, click on "Payment Information".
4.    Fill in the new credit card details.
5.    Click on the "Submit" button to confirm the changes.