This is Musk’s #1 play in his playbook. Stop paying people and see who is willing to fight for it legally. Then negotiate down.
He did the same thing with Solar Roof customers when he doubled their price and asked them to sign a new contract even if they had a signed contract. My friend was one of those and he simply refused to sign anything because he knew better but I wonder how many signed the new contract. Eventually they relented and honored the original price but it was disgusting to even have to deal with that.