I am a current member and I want to change my credit card details/payment information?

You can change your payment information only through AVTREE Account Page:

1- Navigate to your account page by clicking on your name on the top navigation

2- “Under Payment Info tab” > “My Orders”

3- Click on “View” button beside your last active order

4- Click on “View” under Related subscriptions

5- Click on “Change Payment”

5- Change your Credit Card Info