Seriously!!!

Some of you know the clutch went out on the Accord, since I needed to get it done I took it took a local mechanic here in instead of our usual mechanic. Before he returned the car he told me after the work got done it was throwing a check engine light and he took it to someone else to have it looked at. Turned out to be a coolant sensor he had broken in the process of putting the car back.

Well after I picked up the car I noticed my glove box completely broken. (They have to take apart the glove box to check the check engine light code.) I went back and asked him if he knew the glove box was broken. He said it wasn't his fault since he had given the car to someone else to work on. I told him I gave him the car and it was his responsibility to fix it. He then tells me he will zip tie and duct tape it together and I told him that wasn't an option.

Now he refuses to repair my glove box despite knowing he is responsible. I have been very nice to him and I am certain he will do nothing. Realistically speaking what are my options? Does the BBB do anything worthwhile?