According to the Protection of Wages Law, payment of wages must be at least weekly or monthly depending on the agreement made between the employer and the employee. Any delay of the agreed and expected time of payment is considered a violation of the Law.
In such cases, the employee can submit a written complaint to the Department of Labour Relations. The Department investigates the complaint and tries to solve the dispute. If the dispute is not settled, the Department of Labour Relations has the jurisdiction to proceed with criminal proceedings against the employer.
Note that the Law does not oblige the employer to pay the monthly salaries every first of each month.