Payment confirmation without giving my info?

I DID NOT PAY FOR NORTON; why am I getting payment notifications?  I just bought this computer this Sunday. 

Hello. If you are getting e-mail messages validate its authenticity at this link. If the sender e-mail address isn't listed its a scam. Just delete the messages.

https://support.norton.com/sp/en/us/home/current/solutions/v71088498_EndUserProfile_en_us

SA