Hello, I am working in Bahrain for the past 18...

we advise you to go to the labor office and file a complaint against the employer.
NOTE: In establishments wherein the wage structure provides for periodical wage increases the most recent basic wage paid to the worker together with high cost of living bonus and family allowance shall be deemed to be the basis for the calculation of the entitlements of such worker in accordance with the provisions of this Law. In other instances, the aggregate of the most recent cash wage paid to the worker periodically and regularly shall be deemed to be the basis for the calculation of wage. Concerning any worker who is paid a wage on the basis of piece-work or productivity, the calculation in this respect shall be deemed to be upon the basis of the average wage paid to the worker for the actual days worked during the previous three months.

It is clear from your inquiry that you receive a fixed salary for a job grade that is less than the job grade in which you work, and this is contrary to the Bahraini Labor Law. Therefore, in order for you to be entitled to this wage, you must file a complaint with the Labor Office

We thank you for contacting us and we are always at your service