He attended the lavish Opera Ball, tickets for which cost at least e200 (£132), and new evidence suggests he was entertained in a private box with all hotel expenses paid, the total cost being £11,000. The Bild Zeitung newspaper has also claimed that Welteke was again entertained at the Opera Ball in 2002 - this time by an unnamed German commercial bank. 'Again he stayed a couple of days longer than he needed to,' said Bild.