Company X is a well$-$established company operating in South Africa, known for its diverse workforce. However, it has a

company policy that explicitly states that it does not hire non$-$religious individuals. This policy is rooted in the belief that

employees must adhere to a specific religious faith to maintain a harmonious work environment.

John, a dedicated and hardworking employee of Company X$,$ had been a devout member of a religious faith for many

years. However, due to a profound personal transformation and a change in his beliefs, John decided to abandon his

religious faith and identify as non$-$religious. He believed that this change in his personal beliefs was essential for his

authentic self$-$expression.

Upon learning about John's decision, Company X$\text{'}$s management, in accordance with their policy, decided to dismiss him

from his position. John was devastated by this decision, as he had been a loyal and productive employee for many years.

John also feels that his dismissal was procedurally unfair.

In this scenario, John believes that he has been unfairly discriminated against based on his change in religious belief and

seeks legal recourse under South African law. John approaches you for advice regarding his case.

Discuss the requirements for both substantive and procedural fairness within the context of South African Law.