 Within this period a significant regress of this institution was indicated, among all, there was lack of permanent connection with Venice.Due to this fact, the contract with Maffon was terminated before the deadline and Sebastian Montelupi, who was one of the richest Cracow bourgeois, applied for the position of the postmaster.He was granted a relevant privilege on 18 November 1568, however, he took up a position of the postmaster only under the extended privilege of 22 June 1569.