What is the ruling on adding the costs of making documents or seals, or the costs of transportation, food, and labor, to the real price of the purchased item, when they are not available or needed to complete the government purchase process?

The representative is an agent of the institution, so he may not act except with the permission of his principal. He does not have the authority to create a special document and stamp for the shop owner. He is also not permitted to make purchases from a shop that requires a fare to reach, unless with the institution's permission. If the institution's system prevents it from purchasing materials without an increase in expenses, and this has become customary, then there is no harm in it, provided the director is aware and gives permission.