According to the protocol signed by Marmara University Rector Prof.Erol Özvar PhD and the Chief of PTT Necati Yoldaş, a customer number is defined for each unit of the university and all the units and all the staff and students are present in the aps, courier and postal cargo, a discount will be applied on the fare basis. Our university will benefit from this service by showing 503017444 customer number and institution personnel card given by administrative and academic staff PTT and showing our students 603017436 customer number and student ID card.