I've always thought that the larger the company, the less important the individual client.
Last evening, a client asked me to supervise a remote connection with one of their software providers - a large company - at 9:30. It was urgent, so I completely rearranged my schedule for today (canceling two business trips) and made myself available.
The company confirmed the appointment.
This morning, no one showed up. My client tried to open a support ticket and send reminders, but got nothing. No feedback. No response. Nothing. My client is partially at a standstill, and I'm stuck (I've done other things, but the trips still need to be made). The provider is unreachable.
Then again, they provide software that no one else does - and due to strict regulations, there are no other solutions. They know it, and they do whatever they want.