the examination office you can find in house 9924, 1st floor north.
The officials in charge are in the following rooms:
Ms Claudia Endlich 9924 / 117, phone: 06782/17-1835
Mr Michael Heß 9924 / 119, phone: 06782/17-2652
Ms Christina Korb 9927 / 108, phone: 06782/17-1865
The Head of the examination office, Ms Gabi Stahl, you can find in room 9924 / 109, phone: 06782/17-1844.
Please look on our Site "Questions and Answers", maybe you can find the answer for your current question there.