Product key for microsoft office 2007. I have a new Laptop which is now asking me to put down the

Question

I have a new Laptop which is now asking me to put down the product keys before I get an access to word and Exell.I wrote the key which is at the back of the lap top but I'm being told that is wrong .I don't know what can I do?

my laptop is hp and asking for key product for ms office 2007 key product