Here are our FAQs . Perhaps yours is one of them?

If not, you can reach us during our opening hours via phone or round the clock via email.


Phone: +49 (0)711-50092134



For media representatives:

Our Test Stations

Station Königsbau Passagen (3rd floor)

U Schlossplatz

Königstraße 26, 70173 Stuttgart


Opening hours:

Monday-Saturday 09:00 – 19:00

Station Kaiserstraße

Kaiserstraße 59, 44135 Dortmund


Opening hours:

Monday-Saturday 10:00 – 18:00