Of course, it's also possible you signed a contract that basically says "we can just decide not to work and you can't do anything about it" in which case, sucks, and fire whoever negotiates your B2B contracts. But also, those clauses can be void if the violation is serious enough.
But I agree, I recognize the silence in that forum thread that was locked without a resolution: some boss said "let they complain or pay, we don't care about them otherwise".