I believe it is illegal here for a worker not to have a copy of the contract that they signed. So I suggest they go straight to the Labour dept who should be able to advise them. The company they work for will have had to submit copies of the contract to the labour department. The easiest way you can advise them get them to go to the Labour Dept as soon as possible, it is located next to the American Hospital (on traffic lights up from Ramada junction going towards the airport)