I was successful for an Executive Assistant role which started a month ago. Before I was a Medical Secretary so this role I took on was like a promotion. They misled me about the job and when I started I was so overwhelmed and given the work with no training at all. The job description they provided did not reflect my workload at all. Whenever I asked training or support, my manager said she doesn't know how to do them. I was shocked and left to figure out things by myself such as efinancials, rota system. I felt so overwhelmed and didn't know what I'm doing. I was executive assistant to Chief Executive who was extremely busy and was just giving me work over work. Yesterday I broke down when the chief executive told me I am underperforming and I told her everything how I was not trained and not supported by the manager. I told her the job I am doing is completely different to what was advertised. She was shocked to see that I was given the wrong job description. I was devastated, this has reached HR and my manager is under investigation on why I was provided with the wrong job description. I had enough and told them I cannot do this anymore and will be taking a grievance against the company. The chief executive said she will be supporting me and also suggested offering me a post which is suitable for me. I feel betrayed and dont want to go back.