I have worked at a primary school for last six years as a TA. I was taken on as paid employee on a temporary basis three years ago. After a year doing same 20 hours a week the post was advertised internally and I was unsucessful. A student was then given the post and made permanent. I then was told I had no hours at all. Unfortunately a colleague had to leave through long term sickness not long after and I was offered 15 hours again on temporary basis.After two years doing these hours the same thing has happened. I was told to apply for the job I had done for last two years. I did this and again was unsuccessful. An employee taken on 6 months ago was successful in the interview and was given the post which has suddenly been made permanent and now I have no job this coming September. My payslip states I worked as a relief TA and for the last two years as a supply TA. My performance has been good and the HT has never stated he was unhappy with my work nor have my colleagues . Have I been treated unfairly or is this the norm? I would appreciate any advice.