There are two ways we could assume that you would like to change your payment information for the ProThemes monthly subscription. First is if you want to change the Paypal email address billed for the monthly subscription. Second is maintaining the same Paypal email address but changing the credit card associated for the Paypal account.
If you want change the Paypal address used on your ProThemes monthly subscription, you will need to cancel your monthly subscription first.
Please follow these steps on how to cancel your recurring payments for ProThemes Membership Paypal.
1. Log in to your Paypal account at Paypal.com
2. Once you are logged in to your PayPal, just click on this link: https://www.paypal.com/pt/cgi-bin/webscr?cmd=_ap-manage-preapprovals
After you cancel the monthly subscription, log in to your members area and sign up again to the monthly subscription using a new Paypal account. Please submit a trouble ticket to support and ask for the link to re-establish your ProThemes monthly subscription. You can then sign up with the new PayPal email address.
If you want to change the credit card associated on your Paypal account, just log in to your Paypal account and go to Profile. You will need add the new credit card and select it as the source of funds on your Paypal. Here's the instructions on how to do it:
https://www.youtube.com/watch?v=GtinPqelvWM
Hope this helps you out.