Regarding Final Pay Deductions

Hi. Nag resign ako sa TP last December 6 na nagrender for 30 days. Nag surrender na ako ng mga equipment and they acknowledge it.

Recently, I received an email from them that I would not be receiving Final Pay. I called their hotline and they explained that my Final Pay balance would all be deducted to pay my SSS Loan.

Di ako sure sa explaination nila kung tama. Is it ok for them to deduct all of my Final Pay to my SSS Loan?