Very disappointed! Went there to see Alex Janvrier...

Very disappointed! Went there to see Alex Janvrier, in the moment I went into the exhibition hall a group of about 50 teenagers came in with their teachers. It was an unbelievable noise, the teachers didn't calm them down, I left with a few other visitors to another floor where I found the same situation. Drank a coffee, went back 30 minutes later, next group, loud, overcrowded... haven't seen Janvrier, left to the parking... payment with an European credit card not possible. This took me an half hour to find this out with the help of 2 security guys! Wow! Tried to pay in cash, not possible. I think, something is wrong with this place. Finally lucky that I could leave.