Mr. Harrison,
Thank you for sharing the details of your ordeal.
I certainly cannot fully appreciate your distress and outrage, but I applaud your efforts to redress the wrongs inflicted on you.
Though it is no consolation, the two agencies you dealt with routinely mistreat other Foreign teachers. Anything you can do to expose them to authorities is a worthy endeavor.
If you would not mind a question: what age were the students that you taught and how did they respond to your disability? How did you deal with their questions? Chinese students have difficulty discussing many issues and Chinese society has much work to do in the arena of providing equality for their citizens with disabilities. Your work in the classroom was a valuable opportunity for your students.
May I suggest you consider applying directly to some universities? I will be sending you an email in the event that I may provide you with some leads in that effort.