I'm sorry for what you are dealing with but am so glad you posted this as something VERY similar is happening to me though my position doesn't start until next week. I agreed to a PRN day shift at a hospital until a FT or PT position opened up, which during the interview I was told would be around the first of Jan, Feb at the latest as another nurse is leaving due to pregnancy. I made it clear when interviewing I could only work days. There was no issue as the Director stated she had someone for nights as well as someone who wanted to "flip" between days and nights. I find out Friday I am listed as "variable" PRN and inquired about what that meant. You guessed it, that I will be available for ANY hours needed. I will be scheduled to work a certain date but it could be nights one date and days another. I contacted the Director who said her "needs for the unit had changed in the past few days", etc ,etc. Like you, the agreement hasn't turned out to be at all what was discussed. I have another job so I do not have to move forward with this one. I was wanting to get back into the hospital setting and not work M-F anymore but now, I don't trust the new employer or at least not the Director. Like you, had I not received a copy of the upcoming schedule, I would have had no idea the agreement had changed. Interestingly, the final offer letter on Friday was so general that that is the reason I asked about any of it since there was no specification of day shift, agreed number of shifts a month etc. I thought maybe this was an isolated incident or just this employer but now, reading what you are dealing with, I guess not. I don't understand how employers expect a certain level of trust/professionalism/professional courtesy but don't think to extend that to the employee.