Brau und Brunnen AG

The address I have for Brau und Brunnen, Germany's largest beverage group with $864 million in revenues, is Methfesselstrasse 28-48 and I, nor the hotel concierge can find the street on any map. Looking in the phone book we find the company has a new address and it's quite a distance away. Jeez, so much for visiting them. I'm not going ride all the way out to their headquarters only to be told they hadn't received my advance material plus, German companies aren't exactly known for being flexible. (*Note A week later my introductory letter sent a month earlier to the Methfesselstrasse address is returned. It's stamped with wording in German and I assume it means "undeliverable" or "no longer at this address")