I ordered from them several months ago and things were peachy.
Did you get Ernestine, telling you the phone had been disconnected? Or did you just get endless ringing?
They're small enough that they may have plumb forgot to pay the phone bill. Or they may have had a dispute with the phone company that spiraled out of control. Or someone at the phone company may have screwed up (it's hard to imagine, I know -- but it does happen once in a blue moon). If it's endless ringing and no answer, or Ernestine telling you the number's unreachable, or a fast busy signal, or something, then it may be mechanical problems at their phone company, or at their site, or there may be a very embarrassed back hoe operator somewhere in between the two.
I'd keep trying -- if they did just forget then you can bet that they're trying to get reconnected ASAP.