Issues with installing product and removing existing account

I recently purchased a copy of  Norton premium security but cannot load it. spoke to Norton who said my program had been hacked and I did not have a fire wall.  The operator offered to fix the issue but that I would have to pay two fees.  I find this difficult because I turn Norton on each time I use the computer and it has never informed me of any issue.  He said Norton was hacked and my new renewal cannot be installed because many of y files are not operating.  It appears the hacking was in June and July of 2017.