Grime fighter removal

I purchased grime fighter when I renewed my subscription. It plays havoc with my system and I want to remove it (as well as securing a refund). I have yet to find a way to eliminate it. Its been about 8 days (I noticed in a post that it takes 10+ days to get a response) since I have heard anything. I tried to access my ticket but my log in is not accepted. I changed my password ant it still does not work!. I am beginning to think that Avast doesn’t really care about its users.

Remove it from the installed components.
control panel > software > avast > change

Mention your ticket number here.