So I've been trying to cancel my subscription to Avast Anti-Virus and also to get a refund on another product they sell which just plain won't work on my computer.
Their Customer Support phone line offers two options. You can talk to their Tech Support department 24/7. You can talk to their billing department during working hours. Either one will tell you the same thing: To submit a support ticket and ask for a refund. They will tell you there is absolutely no other way to get money refunded from the Avast company.
So you submit a support ticket. This is not easy because the website doesn't tell you that's what you have to do to request a refund. It makes it look like that's just for tech support and comments. But you submit a support ticket and you get back a form message that tells you your support ticket has been received and you will receive a response within two working days.
I submitted my first refund request support ticket on 8/4/14. I submitted my second on 8/5/14. Today is 8/13/14 and I have heard nothing. There appears to be no other way to reach the Avast company.
I'm having my credit card company block further charges to my card but they won't get involved in extracting refunds from a vendor.
I'll let you know when I hear from Avast. If I hear from Avast.