body: My brother was recently employed full time in a very specialized (and sensitive) job in South Africa for a company based in the US. There are less than 300 people in the world suited for his job. 
  
  
  His employer was so anxious to get him to sign the contract that things were rushed a little it seems. My brother signed the contract he had been given (already signed by the employer) and noticed that the salary they had agreed on per year, was stated in the contract as the salary per month.
  
  
  My brother, informed the employer and an amendment to the contract was signed.
  
  
  Due to the nature of the job, very advanced notice (minimum 6 months) is required by both parties for terminating the contract.
  
  
  What would the implications be if an employee were to refuse signing an amendment and insist on what was stated in the original signed contract, even if he/she knows it's a mistake?
  
  
  
title: What are the implications of an obvious mistake in a signed employment contract?