How to get rid of old divces that stil are in subscriptio of AVG ultimate

Good day,
I have a question. How is it possible that I have 9 devices in use according to AVG, even though there are only 5? How can I remove other devices? Some devices have been replaced, but there are no more than 5. Please tell me how I can remove the old devices. I have an AVG Ultimate subscription for 10 devices.

Please tell me what actions are needed, as I can’t find anything in my account to do this, for example, to deactivate old devices. And the online help sends me in circles to FAQ helpdesk unreachable.

I look forward to hearing from you.