Looks like NameJet is based in Washington state based on their About Us page. So give what happened and the low value involved, I'd suggest two things (I'm not a lawyer, and this is not legal advice) look at contacting Washington State's consumer protection board[1] and the Better Business Bureau [2] for the state. They might not take up the issue, but this does seem like something that would likely violate some state bases consumer protection law.
[1] http://www.atg.wa.gov/Divisions/ConsumerProtection.aspx#.U-O... [2] http://www.bbb.org/alaskaoregonwesternwashington/