We are working in a Homecare Facility in UAE. No...

If the employer reject the payment of the salary, you can do as follow:

-file a complaint at the labor office against the employer 

-file a lawsuit before the judge immediately as article 5 of the labor law states as follows:

All the proceedings in the court and filing a case as well as execution of the claim which filed by the worker are exempt from the payment of fees according to the provisions of the law. the court bay accept or refute the case also may decide to remove or impose the fees
 Regarding the company booking the passport, this act is considered illegal where the UAE Ministry of Interior issued a decree confirming that the passport is a personal document that the owner must keep and submit it to the official government authorities upon request and no party may withhold a passport except by a judicial order and in accordance with the law and failure to cancel the visa is illegal and the employee may file a complaint against the employer at the employment office and you can also file a complaint with the police