Can you explain why Bapusaheb Jog was sent to collect 15 rupees Dakshina from Shama?

The provided text indicates a misunderstanding in the question's premise. According to Chapter 18, it was not Bapusaheb Jog who was sent to collect Dakshina. Baba sent a different gentleman, Madhavrao, with the message to collect fifteen rupees as Dakshina from Shama. Bapusaheb Jog's role, as detailed in the same chapter, was different; he was the devotee assigned by Baba to perform the daily Parayana, or disciplined reading, of sacred texts like the Jnaneshwari and Nath Bhagawat in Sathe’s Wada. This reading was a great opportunity for other devotees who would gather to listen.