Norton 360 Premier vs. "Tech Live Support" and Identity protection

My PC has been acting up (slow starts and internet freezes) for several months.  All systems and scans and updates were current  on 360.  I stupidly went on the web looking for solution to problem.  Connected with PC Cleaner for $40, then directed to "tech live support"  which identified over 4000 issues, some warnings, some errors.  For another $255, they cleaned up my PC.  Next day, same issues.  Called, they cleaned PC and said my issues were because I didn't have Identity Theft protection and I.E. had a virus.  I didn't buy anything new.  Question is:  doesn't 360 protect against viruses, identity issues, junk and temporary files?  Was I scammed?