Registration Bug ?

Hi

when I start Cubase 7 it every time aks me to registrer my product, when I try to register then it aks me for my dongle number, and when I put that in on the web page it says that I am already registerd back in 2009, and that regristration is not possible…
So how am I to register C7 and to get the annoing message away when I start C7?