How can I change my method of payment?

 Updated 

You can change your method of payment through MyOSN web portal by following the below simple steps:

1. Go to MyOSN web portal using the following link https://myosn.osn.com

2. Log in with your OSN ID and password.

3. Click on the "My Account" tab.

4. Scroll down to "Payment Card Details", then click "Update Credit/Debit Card".