Good evening sir.. I will ask about my agency the...

The employer may not keep the worker’s passport, and if the worker refuses to hand over his passport, the worker can file a complaint against the employer at the competent labor department, obligating the employer to return the worker’s passport. Also, the employer is not entitled to prevent the worker from taking his annual leave, as the worker may not waive his right to the annual leave, and any agreement to the contrary is invalid, and if the employer refuses to grant the worker his annual leave for two years, the worker can file a complaint against the employer before the competent labor department and requested the transfer of his sponsorship from his sponsor to another sponsor.
This is by the texts of the work as follows:
Article 81
The worker may not waive his right to the annual leave, and any agreement to the contrary is invalid, and the worker has the right to receive a cash allowance equivalent to his wages for the leave days due to him if the work contract is terminated for any reason before obtaining it