Processing time Addition B196 BW

Good day together, I applied 5 weeks ago for the extension of my driving licence B with the addition B196. At this time I was not given the possibility of an express delivery. (despite the demand for a possibility to get it faster). Now after 5 weeks still no way to drive and the waiting may take another 5 weeks. What can I do, who can contact in order to exercise something “pressure”? She always refers only to the federal printing company, that it is in progress and you can do nothing. I would be pleased about your experiences. A bit of frustration letting off did good greetings.