Norton & Lifelock

I upgraded to Norton360 MAC from my Lifelock account. Now I have been told that my LifeLock subscription has expired and to renew. Do I need both? Doesn't Norton360 incorporate LifeLock features. Lifelock serves my needs more than Norton and would prefer to have just that.

Also, I never get more spam pretending to be Norton than any other program I subscribe to. Can't Norton fix this?

Thanks.