Hi, let me know about PCR fine in Abu Dhabi, I...

We would like to inform you that if fines are imposed on you for violating the precautionary rules to reduce the Corona epidemic in the UAE, and with the imposition of a fine on you of 5000 thousand dirhams with the grievance and its reduction by half

Here, and according to the procedures in force in the country, the reduction of the fine is for one time, and therefore it is not permissible to reduce it again

But, as an attempt, you can file a grievance against the remaining fine through this government link to you as follows

 Raise a grievance against fines issued for violating COVID-19 precautionary measures