Missons after 3 stations (I misread the text below the platform truck)

This reason is why I always buy the truck at the station before it is needed (ex. Buying a HR at 3 stations or a HazMat at 10). That way I always have what I need. I hate that you're stuck and I don't mean to sound rude, but perhaps this a lesson on being aware of your resources and how quickly you choose to expand.