I was employed of a company

We would like to inform you that according to the UAE law, if you are a resident and an expat in the UAE, and with regard to holding the passport first, it is not permissible for the employer to hold the passport , but in the event that the passport is held by the employer (the sponsor), you may ask the passport back and if he refused to return it, then a complaint may be filed at the nearest police station. Also, you may submit a copy of the complaint to the labor office to explain the matter and the violation, but the law permits that the passport be held with any government department that follows the Ministry of the Interior with the legal justification for the holding or else it is considered a legal violation and this is unlike the employers in the private sector who are prevented from holding passports of their workers. On the other hand, regarding the work visa and transfer it from the visit one. In the event that the employer submits for it and requests it to the worker, the time taken is 60 days from the date of application so that if this period exceeds, you may go to the labor office and submit a complaint and explain the matter in detail for the purpose of summoning the sponsor and settle the visa matter.
Whoever has the right to cancel the visa is the guarantor or whoever delegates it and with the issuance of the visa for two years, it cannot be canceled except with the approval of the employer, as it is according to the law Article (113):
The employment contract ends in any of the following cases:
1. If the two parties agree to terminate it, provided that the consent of the worker is in writing.
2. If the period specified in the contract expires unless it has been explicitly or implicitly extended in accordance with the provisions of this law.
3. Based on the will of one of the parties in contracts of indefinite duration, provided that they abide by the provisions of this law relating to warning and the acceptable reasons for terminating the contract without arbitrariness.
Article 115
Where an employment contract is for a definite term and the employer revokes it for reasons other than those specified in Article (120) he shall be required to compensate the worker for any damage the latter sustains, provided that the amount of compensation shall in no case exceed the aggregate wage due for a period of three months or the remaining period of the contract, whichever is shorter, unless otherwise stipulated in the contract.
The law also provided legal protection for wages in the text of Article (56) which stipulated:
Article (56)
Workers who are hired at an annual or monthly wage are paid at least once a month and all other workers are paid at least once every two weeks. Thus, if there is a violation in the employment contract, he may go to the Ministry of Labor and file a complaint and then leave the work according to
Article (121):
A worker may leave work without notice in one of the following cases:
1- If the employer violates his obligations before the worker in the articles stipulated in the contract or the law.
2- If the employer or his legal representative signs an assault on the worker.
Article 115
Where an employment contract is for a definite term and the employer revokes it for reasons other than those specified in Article (120) he shall be required to compensate the worker for any damage the latter sustains, provided that the amount of compensation shall in no case exceed the aggregate wage due for a period of three months or the remaining period of the contract, whichever is shorter, unless otherwise stipulated in the contract.
Article 117
1. Either the employer or the worker may terminate an indefinite term contract for a valid reason at any time following its conclusion, by giving the other party a notice in writing at least 30 days prior to termination.
2. For the daily-paid workers, the notice period shall be as follows:
• One week: if the worker has been employed for more than six months but less than one year.
• Two weeks: if the worker has been employed for not less than one
year.
• One month: if the worker has been employed for not less than five
years.
Article 118
A contract shall subsist throughout the notice period referred to in the preceding Article and shall terminate only on expiry of that period. The worker shall be entitled in respect of the notice period to full pay, calculated on the basis of his last wage, and shall continue to perform his duties during that period if the employer so requests. The Parties may not agree to waive the notice requirement or to reduce the notice period; however, they may agree to extend the period.
Article 119
If either the employer or the worker reduces the period of, or fails to serve a notice of termination on the other, the forbearing party shall pay the other a “compensation in lieu of notice”, irrespective of whether or not the other party has sustained damage as
a result of such failure or shorter notice. The said compensation shall be equal to the worker's wage in respect of the entire or reduced period of notice. Compensation in lieu of notice shall be calculated on the basis of the last wage received, in the case of
monthly, weekly, daily and hourly paid workers, and on the basis of the average daily wage referred to in Article 57 of this Law in the case of those paid on piecemeal.
Therefore, you have to file a complaint in the labor office and if they didn't help you then you can go to the court to get legal judgment to force the employer to pay.