Antivirus Xpress Purchased Norton 360 online, was given key code for Norton Internet Security (a lesser product) Internet

I purchased Norton 360 for 2 years. My invoice stated that I purchased Norton 360. When they emailed me the key code it was for Norton Internet Security, which is a lesser product. So I was actually sold a lesser product than I thought I purchased. Of course I was able to use Norton 360 for the first 90 days for free, so I didn't realize I got the incorrect key code until the 90 day free trial ended. I tried to contact them twice through their Contact Us web page, but they never responded. I cannot find out where they are located. There is no phone number or physical address to contact. Do not do business with this company. If you need any customer service it is non-existent!