As with the filing for a Judicial Reorganisation Proceeding (JRP) application, a fee is payable when filing a request preparatory agreement JRP according to Article XX.39/1. The debtor, or his/her lawyer, pays this fee when filing the application. 

A contribution for the LEGAL AID FUND is also due (you can find the actual amount here): this is paid by the debtor directly to the court (as in the case of filing a JRP application). He/she will receive the necessary instructions for this when filing his/her application in RegSol.

This fee is regularly indexed. When submitting the petition, you will automatically be informed of the bank account to which payment must be made. 

DPA Authentic Sources RR