Verb conjugation of "beteuern" in German

I ordered a cab at four o'clock in the morning which took me to the Central Bus Station. I was much to early because the bus would go just at seven o'clock. Anyway I was sitting there and listening to music.
I can send them by mail or bring them in person. I'll be happy to join the trial and help you. The download of the language files may take 30 seconds and the screen is blank during that time.
Luckily the town was small and the hotel manager could call all taxi stations. They checked it through their radios and an hour later the driver was back with our bags. He did not want to be paid extra, but I insisted.