I recently started a new job on the 8th of may 2006 as an trainee assistant merchandiser when i started my contract was based on a 3 months probation once that time had passed i had a meeting with HR who told me that my probation had been extended until the merchandiser and the general manager had decided about my role in the company. Today i received a letter which I was forced to read quickly and sign at the end of the day stating I had to attend a meeting tomorrow the 12 Sept with the merchandiser and the general manager about my role. Once i returned home i realised that this letter made a lot of reference to dismissal, disciplinary, grievances and was offering me to have a representative to accompany me at the meeting. As far as I am aware I have not done anything wrong and I applied for a permanent full time role within this company. I feel as though they could be trying to get rid of me without cause how can i defend myself in order to keep my job or even to keep it until I find another one?