Changing your billing address is only a few clicks away.
First, head on to Payment Methods section under Billing menu in your Account settings and click subscription details link:
Then click "Edit Subscription". (If you can't find the link to click, hover your mouse near to the Edit Subscription words until a hand-click icon is shown.)
Select "Update Address" and click "Next".
Here, you will be able to amend your mailing address that is linked to your account. Then, click "Save Changes" once you are done.
Note: If you don't see an option to update this info within your Ahrefs account, please, contact our support team for further assistance.