Your question has been sitting idle for a day. I'm not sure if you still need assistance, but I will answer, in the hope that my efforts may be appreciated.
It has long been recognized under Hawai`i law that an employee is not entitled to "pay" for vacation benefits which are unused during the period of employment, unless there is an express policy (or contractual obligation) to the contrary. Lim v. Motor Supply, Ltd., 45 Haw. 111, 122, 364 P.2d 38, 44-45, reh'g denied, 45 Haw. 198, 364 P.2d 38 (1961).
Based upon the above-referenced legal doctrine, unless your employment contract preserved your right to being paid for unused vacation time after termination of employment, then the employer's termination was clearly intended as a strategic means of reducing their liability by effectively forfeiting your unused vacation pay.
To say that this is an incredibly unjust law is an understatement. In California, by contrast, the same strategy by an employer would be considered a theft of wages, and the employee would have a huge lawsuit or complaint to the Labor Commissioner. But, in Hawai`i, the law is written to immunize the employer against this sort of alleged abominable conduct, and short of the legislature rewriting the current labor laws, there is nothing that you can do about your lost vacation pay.
I realize that my answer may not be exactly what you were hoping to read. However, under the circumstances, the best that I can do is to explain what the law is and is not, so that you can avoid expending valuable resources looking for answers that do not exist, and concentrate on the options that are actually available.
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