How to renew when no "renew" option avaialable?

I let My subscription lapse and now trying renew but

a) Cannot renew because "Renew" subscription option not showing, only "subscribe" at bottom of classic view of norton. Meaning pay for new stuff when i aleady have a new key.

b) I cannot sign in to norton web page becausse it does not leave- " Welcome, Sign in Here"

It's like the old third base scenario, round and round. 

I have a new key i'm trying to use but am having great difficulty doing so.

Need help please.