Resignation for salary delays and claiming dues before cancellation

Hello,

I am working for a manufacturing company in Dubai. The company is unable to pay the salaries on time for the last two years.

There have been several promises made that the salaries would come back to normal, but didn't happen till now.

Due to this, and even if the employee wishes to cancel the visa to discontinue his job here, the company does not give the full settlement during cancellation.

Whereas the employee is forced to sign the cancellation paper stating that he has received all his benefits from the company while getting only partial payment.

The company promises him that the remaining would be paid in the coming 3 to 6 months. The company fails to do so and leaves fewer options for the employee to challenge it legally.

What should be done in such case in order to receive all the money before we leave the company?