In SaasAnt Transactions (Online), you can make the payment via two payment gateways as follows:. 

1. 2Checkout 

2. PayPal

The steps to update the card details differ based on your chosen payment gateway options.

If your subscription is due for payment, then you can also resubscribe newly to cancel the previous card details.

To Pay via 2Checkout:

In SaasAnt Transactions (Online),  Navigate to SaasAnt Gear icons à Billing Payment à options à update credit card.

Refer to the below screenshot for Settings & Billing.

Under Billing, click on Payment Options, and then update your credit card.

To PayPal via PayPal

 To update the card details in Paypal, you need to login to your PayPal account and update the card details.