How do I end my subscription for Avast premium?

Avast Free Antivirus / Premium Security
1

Hello,
I wanted to try Avast Premium security mainly because of the sandbox. However, it’s worthless for me as I can’t open files in sandbox. I subscribed for 60 days free trial, so I didn’t pay anything, but I can’t end the subscription. I just don’t see the button on my account.
Thanks for help.

2

Does this help ? https://support.avast.com/en-us/article/Account-Subscription

FAQ >> https://support.avast.com/

3

I just don’t see the unsubscribe button.

4

→ https://support.avast.com/article/24/ (Orders/Renewals/Refunds)