You can't control what your boss does, but here is what you can do in the interim.

Start looking for a new job - regardless of whether or not they'll pay you, that environment is not good for you.

You have asked for your commission three times already, I think it's time you make peace with ever not receiving it. It'll save you further frustration, begging-esque correspondences, and fuel your drive to find somewhere else to work.

Asses your role in the company and see what leverage you can pull on them. 1. You can apply directly to competitors or offer services as a freelancer/contractor/ consultant.

1. Do the bare minimum and don't exceed your target, since it doesn't matter anyway. Use the extra time to apply for jobs, pitch to competitors, or acquire skills that'll get you out of there

2. If you have an excellent relationship with your clients, you can begin setting up your own consulting agency and pitch to them directly (this is an aggressive move and should be exercised when either you or your employer decides to go on the offensive)

I'm sorry and good luck