I submitted a ticket for an unwanted renewal over a week ago and have heard nothing back?
Normally it can take up to 10 working days to process a refund.
If you can post the support ticket ID in your next post.
Whatever you do don’t submit another ticket or update an existing ticket - Submitting multiple tickets can actually slow the process as the tickets are dealt with in a first in first out basis. So for now don’t update or submit further tickets - refunds can take up to ten working days to be handled.
You can however use the on-line contact form, http://www.avast.com/contact-form.php?loadStyles to contact Sales.
Put as much information in that as possible - Support ticket ID number (as you have here), receipt/payment number, email, etc. A link to this topic wouldn’t hurt.
When you post the Ticket ID I will try to attract some attention to this topic.