I have tried to unsubscribe from renewing subscription but unsuccessfully.
First, I’m an Avast user and not an Avast Team member.
Can you be a little more detailed in what happens, errors, etc when it is unsuccessful ?
I have to assume that you are using “Avast SecureLine VPN for Android” given you have posted in that sub-forum.
Not using Avast SecureLine VPN for Android I did a search: