Agent locked me into 15 day mystery escrow?

I hired a broker who said he would put the house on the MLS and generate offers. Then he ran to guys who buy houses for cash and told me he wasn't getting offers, so I would settle for a cash price, and he doesn't have to split the commission. Does anybody know the ethics of this or who to report it to? Cause the brokerage could care less. I also told him to get his sign off the lawn and he was fired, and he didn't do that either. This guy is like flypaper.