This article gives step by step instructions for updating the billing information used for your DPD subscription:
1. Log into your DPD account
2. Select the Vendor option in the top right corner of your DPD dashboard as shown in the screenshot below:
3. Select Manage Subscription from the dropdown menu that appears
4. Select the Update Billing Info button on the right side of the page
5. Update your information and be sure to click the Save button at the bottom of the page to have the change apply.