Solid advice but, companies like hasfast, BFL and other mining equipment suppliers represent a major part of the bitcoin industry.
If people just sit there and take it from liars and thieves how are we supposed to recommend bitcoin to friends and family.
I'm not suggesting people to bend over and take it if they believe they've been wronged. I think the situation with mining vendors right now is a major risk to the Bitcoin ecosystem (primarily because small sane individuals are unlikely to invest in mining gear in the current climate, hurting our decentralization).
I'm just attempting to say that if you plan on doing something you should make a full commitment. A half measure of just rejecting the shipment and then doing nothing about it will only hurt you.