My friend had finished contract on his employer...

We would like to inform that The employee can object to the work ban or remove it by submitting an application for grievance through the website of the Ministry of Human Resources and Settlement and its e-mail or a facilitation center and attach all the documents that confirm the lack of entitlement to that prohibition and the worker will receive a reference number in his request and there is a committee in the ministry headed by the agent and membership of inspection agents and assistants working in addition to some department managers who will study these requests and decide to lift or maintain the ban and then notify the worker of the decision of the Committee.

The ban imposed by the Immigration Office is removed through a request of permission submitted to the Minister of Interior, and the request for permission is submitted to the Nationality and Residence Department concerned with receiving an application for permission or entry visa with the necessity to include the application with all data related to the residence or previous residence in the country, the reasons for the ban and the circumstances that arose after it, and she may justify the permission to enter the country again, and the application shall be attached to all the necessary supporting documents in this regard, and after completing the necessary procedures, the documents  are submitted to the competent authority.