Perhaps I can help you with this problem .
You`re not the only one believe me , this seems to be a nationwide phenomenon since a couple of days .
You will need to get your password ***** at apple .
I will give you a link that will help ;
Here is another one for your ID if necessary ;
If you still cannot activate your iphone then take a look here ;
Let me know how that goes
By the way , the first two links may be all you need but you can start with the 3rd link as well , its all there