Disability discrimination by supervisor - tired of it all

Basically, story goes like this.  Have been a transcriptionist many years.  Thought I was moving up to a better line count with another company (having trouble making ends meet).  Found this great pay rate with a national MTSO and signed on.  Couldn't work full schedule since the beginning due to medical problems but did work consistently part time with excellent accuracy and no job-related complaints, nothing but praise for working a very difficult account.  About four weeks into job, for first time, supervisor decides to ask why I am not working full time.  Relayed to her I need part time due to disability.  Figured it would be no problem since website advertises flexible schedules.  She never started bothering me until I said "disability."  Then there were phone calls to my home, during my work schedule and not during my work schedule.  There were emails.  There were instant messages.  Questions.  Why aren't you working your scheduled hours?  As if I never notified them I needed part time. 

So anyhow, the nonstop questioning for two weeks came to a climax when I was called probably 10 times in one day between home and cell, emailed, and finally, instant messaged about a full-time schedule.  I finally picked up the phone.  Trust me, I was afraid because I am a very mild-mannered, shy, nice person.  There was the HR manager and the supervisor on the phone taping the phone call.  I have never said or done one untoward thing toward anyone there.  Just asked for part time due to a disability.

I notified the supervisor's supervisor that I needed part time.  I notified the supervisor.  I notified the human resource manager.  I provided proof of disability.  I answered their phone calls (sometimes, it was impossible and not emotionally healthy to answer them all).  I provided reason after reason.  I faxed them documentation.  I emailed them answers back to their questions.

They said the documentation was not good enough.  It was like I had given them nothing.  They said they did not have to accommodate.  They said I was held to a full-time schedule until I provided the exact documentation they wanted and then after review they would see if they could provide an accommodation.  They said I did not understand.  They said I had to be available to answer the phone.  They wanted lines of communication open.  They looked for reasons to fire me and write me up.  I got written up twice for not working full time after notifying them of disability.

I have witnesses who heard my end of the phone call.  They heard my quiet voice and saw the look on my horrified face and told me to just hang up and forget it.

When taking off for a pain injection under sedation, I was told that I had better provide documentation faxed right away to human resources office and that they would not allow more than two days to be off, without PTO option of course.  They stated it was a problem and if I was gone more than two days they would not hold my job because I had not been there a year for FMLA leave.

I feel I was forced to quit.  I have never ever been harassed because of my disability.  There were no job performance issues that they could nail me on.  The only thing they could attempt to write me up for was not working full time, but I notified them of disability and needed part time.  On the writeups, it states that I gave no notice that I could not work their required schedule.  No matter how many times I attempted to email the supervisor, she would not allow or acknowledge a part-time schedule.

I finally just gave up.  I went ahead and had the pain injection because my health is more important.  I emailed them a resignation two days after the injection.  They were thrilled to get it.  I had emailed them asking a question, and the first and only words in the reply email was something to the effect of are you resigning?

I never swore, I never complained, I never missed a whole lot, I never made a major error, I usually always made line count.  I just needed to work part time.

This is a true story.