Bought new NS... inputted code and DL'd it but NIS is not changing to NS

I bought and inputted the code into NIS and dl’d it but NIS is not changing and now says I have a TRIAL version?
I mean wtf I paid 40 euro for this and it still says 16 days left… how do I change NIS NS? it says I installed it
http://www.bol.com/nl/p/norton-security-2-0-2015-nederlands-1-gebruiker-5-apparaten-1-jaar-productcode-zonder-dvd/9200000033384345/