I'm looking at changing my web host since, lately, my host has been less than satisfactory (they claimed I used 90% of my bandwidth in 13 days, which is ludicrous considering how little traffic I get, so I told them to investigate it and they told me to f' off, basically).
That's the same thing they did to me. I think they do that just to run you out when your preview is over. I ended up registering two domains under the home package with them. I have been pretty satisfied so far. They recently increased space from 1 to 5GB and traffic from 5GB a month to 25.