Why did Baba send Madhavrao to collect fifteen rupees Dakshina from Bapusaheb Jog?

There appears to be a misunderstanding in the question based on the provided text. According to Chapter 18, Sai Baba did not send Madhavrao to collect Dakshina from Bapusaheb Jog. Instead, Baba sent Madhavrao with a message to collect fifteen rupees as Dakshina from Shama. The text explicitly quotes the message: '"Aho, there is a message from Baba, and I have brought it: 'Take fifteen rupees as Dakshina from Shama.'"' Bapusaheb Jog's role mentioned in these passages was to conduct the daily readings of sacred books like the Jnaneshwari and Nath Bhagawat in Sathe's Wada, not to be the source of this particular Dakshina request.