Originally Posted by Bored

I would ask for the correct price if you are going to continue using the current hardware.

Some might say that its just as much your fault for not following up, so getting money back for the last year might be more of a headache than its worth.

If you are happy with the service, I would politely tell them about it and get it fixed. You might be saving them more headaches than just your account (perhaps a bug in software)