Hmm... They said that to me too. I think they were trying to get more subscribers to their pay service since they said that I could no longer use their free service. Oh wait, I just checked my email and found this:
Well, that solves our problemThis special offer will expire on February 28, 2001 - so, in order to take advantage of this, you must act now! As part of this special offer, we will extend the registration period of your domain to one-year from your upgrade date at no additional cost.