Ok so bare with me as this is a complex situation. Basically, last week I started working for a school that I had previously worked for 4 years ago. After verbally accepting the job, I did not receive an offer letter or contract, I did receive a letter stating that I was the 'preferred candidate' along with my salary and other details. I started last week and still never received a formal offer letter or contract. I haven't signed anything, although obviously verbally accepted the job after interview. Since starting it is clear that the job is not what I expected and I am struggling to cope (anxiety/depression). Where would I stand on terms of giving notice? Im going to get in touch with my union next week. Thank you for any advice.