PIN / TAN
semester. If you still have not received your PIN and TAN after this period, please contact the service point in the Central Examinations Office (CEO). If you lose your PIN or TAN, they can be reissued to you [...] this operation, so you must retain a last TAN for this eventuality. Please note that the service point is only responsible for the study programs in Faculties 6 - 12 as well as for teacher training subjects