Other Mastercard

Rob, you should be able to go to the Billing support link (https://support.avg.com/support_sales) and talk to the 24/7 Sales Support team either via phone or live chat.

Where can I change the details of my credit card? Haven't found anything.

Rob, you should be able to go to the Billing support link (https://support.avg.com/support_sales) and talk to the 24/7 Sales Support team either via phone or live chat.