The respondent was employed by the appellant on a fixed-term contract for two years from 30 March 2009 to 29 March 2011. The contract was renewed for a further year until 31 March 2012. Clause 9 of the renewal contract expressly provided that the renewal was entered into with no guarantee of long-term employment or any expectation of further renewals. During that year, the respondent worked with a student on attachment named Mapepa. After completion of the attachment, Mapepa was given a one-year contract operative from 2 March 2012. On 26 March 2012, the respondent was advised that his contract would not be renewed further. The respondent believed he had been unfairly dismissed and referred the matter to arbitration, claiming that Mapepa had been employed in his stead.