I was missing a few pieces from a new copy of Power Grid and tried the customer service section of their web site with no luck. Then I found this e-mail address in the instruction manual. ( email@example.com ). I sent a message to that address and the next day got a message back from them saying they would take care of the problem. About a week later the missing parts came in the mail. Hopefully this will help you as well.
Many thanks for the tip. I'll give it a shot tonight. Most appreciated!