Norton Renewal

Hi  Need to renew my 360 Premium  but it says is £69.99 for renewal    Looked on Norton store and it says its been replaced by Norton Security Premium  which  is worth £59.99.  (special offer at the mo at £39.99)  If i renew do i get the 39.99 for 69.99 or keep the 360 which I'm used too  or do I have  to uninstall 360 then download the new one   or is Norton just trying to rip me off . Im angry and confused at the moment.