It sucks that it happened to you, but Samsung turning back on its partners is a known tactic in SK. The sad part is Samsung is probably not the worst of the bunch in that country.
Samsung used to take care of its employees well, paying great bonus, and giving its strong performers a piece of (or whole) sub-contracting business as retirement gift.
Those were the old days.
Now, all you hear are their brutal and sleazy business dealings a real shame considering they are 100x wealthier than when they were at the most generous.
What's more important, wealth or your reputation?