Am assuming you are referring to fresh graduates in ministries put on 1 yr contract at MX13. Its possible not to be confirmed which basically means your boss thinks you are not suitable for the job. When you are confirmed i.e. 'promoted' to MX12, you are either put on perm estab or given a three year contract. 'promoted' is in quotes because most ppl dont really think of it as a promotion as it is almost given. You need to put in effort to let your bosses think you suck. hahaha.