I can't believe anyone would drive that far without having contact with the person you intended to meet first. A drive across town perhaps, a 2 hour drive with no communication is just stupidity on your part.
I haven't spoken with Chris or Ralph from Wersi USA in a while since I haven't needed any service but all the previous times I've spoken with them they were always cordial and quick to respond. I can't say why they didn't respond to you but once again driving that far without confirmation they would even be there was and error on your part.
I've had nothing but great service from Wersi USA so I can't cast stones where they aren't warranted. Sorry to hear others experiences haven't matched mine.