It just works. The office worker quickly dictates ...

It just works. The office worker quickly dictates to you what documents to attach. You kindly ask her to write it down on paper. She kindly does it. The next day you bring it and wait for the office to bring it to the PIO in BG.
Then you arm yourself with patience and wait for a response from BG.
This is related to the counter of the pio fund in Mladenovac. You do not have to go to BG.