I just filed my complaint with the BBB and advise everyone else to do the same. They can claim "pricing error" for anything they do not wish to fulfill. Unless the circumstances and time length for discover under which a "pricing error" can be claimed are made public they can and will use that for anything.
BBB won't do anything. No business cares what the BBB thinks. You need to contact your State Attorney General. They have people who do consumer stuff and they actually have teeth.