Good afternoon. Prompt as to return money for McAfee AntiVirus Plus extension.
We can't do anything here but Customer Service will gladly refund any such charges up to 60 days afterwards.
Please phone them at: 8 10 800 221 01044 (Russian speaking)
Or use online chat here: http://service.mcafee.com/ServiceSelect.aspx?lc=2057&sg=CS&pt=1&st=CHAT (This in the UK and is English speaking only and available 0900-1700 Monday to Friday only)
There is also en email option which I do NOT recommend as it is extremely slow that way.
By the way, you can turn off auto-renewal yourself on your account page.