When I updated my annual Norton anti-virus software recently, an unauthorized charge of $49.99 was charged to my Visa at the same time.

I renewed my Norton antivirus on line. I was billed $59.99 by Norton on the 25th of April and was billed on the 14th of April for $79.99 by Symantecstore.com. At the time of the renewal, I understood that the cost of the produce that I agreed to purchase was $59.99. I do not know why I was billed twice and have disputed the charge of $79.99 with my credit card company, and will not pay this until I fully understand why I was double billed.