How do I cancel my subscription? Keeps charging my visa, but I keep getting notifications to pay for a subscription, I can't find anywhere to contact anyone, just website that takes me no where

[DavidR]

First, I’m an Avast user and not an Avast Team member.

You don’t say where you have tried/visited, so it is hard say where to look, but you can try this:
Cancelling automatic renewal of the Avast subscription

• See https://support.avast.com/article/account-unsubscribe/#pc
• or https://support.avast.com/article/35 ,use the primary link for advice.
• Also see https://support.avast.com/article/Unsubscribe-FAQ/#pc