Four times I xtend my visit visa now a company...

Where the UAE law prohibits visitors and tourists from working on a visitor or tourist visa, whether for or without wages, and the violator is subject to a fine and deportation. Companies that employ visitors who are in the status of a tourist or visitor are also subject to accountability and a fine. According to the UAE labor law and residence laws, no It is permissible to work in the UAE only after issuing a work permit or visa
So all you can do is put pressure on the company by threatening either to get your dues or to report it on the grounds that it employs workers without a permit if there are other workers in the company in this situation