I am running windows vista. i am running windows vista basic and have been trying to activate

Question

i am running windows vista basic and have been trying to activate microsoft office 2007 ultimate subscription key activated for a week talking to microsoft over the phone to solve the problem so i hope you can help.my problem is software installs ok but when i try and activate it says so many times to call and activate by phone but my problem is i do not get the option to activate by phone.Can anyone please help .