RE: Cermark shipping problem
Somebody on the order desk forgot to check and see if the boxes were oversize. They discovered the error and notified you immediately (before they shipped). They asked you what you wanted to do.
Contrast that to Giant Scale Planes where they go ahead and ship the goods, then charge the greater freight, PLUS A MARKUP, to your credit card.
I'd say Cermark is treating you fairly. Either pay the big bucks or find another way to get the goods up there. (Make a friend across the border?)
Jim