Hi dobbo049,
I'm afraid you will have to return the game to the store. A batch was supplied to Game UK by one of the publishers, with invalid license keys.
They are now aware of the problem, so inform them of this when you return it.
The publisher has corrected the mistake, so you should get a working version upon returning this one.
But if for some reason they don't make it happen or if something goes wrong, then contact me through personal message.
Regards,
Fred