If you receive a billing failure email even though you cancelled a subscription previously, you may still have other active subscriptions on your account. To check this, go to your Account Dashboard and find your expired site. It will display the other active subscriptions remaining.
Squarespace subscriptions are billed independently, which means that if you cancel a website subscription, any Squarespace Domain or Google Workspace subscriptions connected to that site will remain active unless you cancel or disable auto-renew for each subscription. Similarly, if you have multiple website subscriptions on your account, you’ll need to cancel each individually.
To learn more, visit Checking your billing subscriptions.