I had my auto-renewal turned off! Just got charged $140.00!

I was charged $140.00 today for auto-renewal of Norton.  I had this flagged to OFF!! I am so upset right now I want my money back and will go to some other company for virus detection!  I do not have money to cover other expenses for the month now.  Please contact me, and explain why this was turned on again!! I want my money back!