Is it against the Philippine Labor code

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Our supervisor threatens not to pay our separation pay because some of us (their employees) are being lax when it comes to work. It is when they announce that we are closing by this October, so we are a bit slowing down with regard to our duties, but we are still reporting to work and doing our task, only not as fast and as eager as we used to. My question is, Is it against the Labor code if the employer will not pay for the separation pay of their employee?