Is there a legally mandated filing fee and/or deposit in the last instance?

Name: Law on  General Administrative Procedure

Enactment:  2001 with amendments of 2010

Quote:

'Article 56

(…)

(2) An official who receives a submissionshall, at the oral request of the applicant, that he confirmed receipt of thesubmission. For this certificate is no fee.'

Link:http://www.paragraf.rs/propisi/zakon_o_opstem_upravnom_postupku.html