what if my previous employer will not give or...

In the event that the work contract ends and you want to transfer to a new employer without the approval of the old sponsor, you must submit a request to the Ministry of Human Resources stating the reason for transferring the sponsorship without the sponsor’s approval with an indication of his refusal to cancel the visa and the Ministry of Human Resources will contact the General Administration of Residency and Foreigners Affairs and the Federal Authority for Identity and Citizenship to correct your situation