Immediately upon arrival in the Philippines, petitioners went to private respondents’ office, narrated what happened, and demanded the return of their placement fees and plane fare.  Private respondents refused.   On December 28, 1999, private respondents offered a settlement.  Petitioner Mendez received P15,080.[9]  The next day, petitioners Acuña and Ramones went back and received P13,640[10] and P16,200,[11] respectively.  They claim they signed awaiver, otherwise they would not be refunded.[12]   On January 14, 2000, petitioners Acuña and Mendez invoking Republic Act No. 8042,[13] filed a complaint for illegal dismissal and non-payment/underpayment of salaries or wages, overtime pay, refund of transportation fare, payment of salaries/wages for 3 months, moral and exemplary damages, and refund of placement fee before the National Labor Relations Commission (NLRC).  Petitioner Ramones filed her complaint on January 20, 2000.   The Labor Arbiter ruled in favor of petitioners, declaring that Myrna Ramones, Juliet Mendez and Mercedita Acuña did not resign voluntarily from their jobs.  Thus, private respondents were ordered to pay jointly and severally, in Philippine Peso, at the rate of exchange prevailing at the time of payment, the following:       1. MERCEDITA ACUÑA NT$95,000.00   a.  Unexpired Portion 2,436.92   b. Salary for 4 days     c. Overtime pay for 4 hrs. in 1,523.07 4 days NT$98,960.00*     PHP45,000.00 d. Refund of placement fee   13,640.00 (Less:  Amount received per Quitclaim)     e.  Moral damages     f.  Exemplary damages           2. JULIET C. MENDEZ NT$95,000.00   a.  Unexpired Portion 2,436.92   b. Salary for 4 days     c. Overtime pay for 4 hrs. in 1,523.07 4 days NT$98,960.00       PHP45,000.00 d. Refund of placement fee (Less:  Amount received per Quitclaim) 15,080.00[14]                   31,360.00  25,000.00  40,000.00                        29,920.00