I have found that some people like to immediately post a bad experience when it may be better to just politely call the manufacturer.
I seriously doubt any company throws together a bunch of incorrect parts and laughs at what frustration might occur as a result.
Sometimes, these companies rely on other vendors to complete a package like this. Supply vendors sometimes get their parts from different sources too. They often only address a defect when a customer notifies them about it. PST may have no idea that you are having trouble. Maybe you should give them the chance to make it right.
I have no problem bashing a company that repeatedly screws its customers. Screw those guys....
