they are not very helpful with their support. I asked about a particular piece that I couldn’t find, and they sent me a long video to watch from the beginning of opening the box, even though I was halfway through the assembly of the firetruck. I stopped watching the video and went back through prior sheets and eventually found the tiny part, but the parts are not in numerical sequence on these boards so they’re hard to find. I do love the engineering of the fire truck, though.