Tax deficit

I need your legal advice please. I transferred to another company last June 26, 2014, i submitted my ITR form and was told by my new employer that I have a tax deficit of P28,800 and that they already paid it to BIR. According to them they will deduct it equally in 6 payouts, so that will be P4,800 per payout and P9,600 in a month on top of my regular tax deduction. My thing here is that they didn't give me an option or asked me how I want to pay it they didn't take into consideration how much will be left on my salary each payout? I sent an email to HR about this and they told me they're going to set up a meeting with me but the first deduction already took effect because of their delayed responses on my emails. Please tell me what are my rights and what should I do.

just talk to them and ask them if they could extend the payment terms..

did you bother to ask what is the tax deficit about?

what type of tax payer are you? pure compensation earner?

assuming you are a pure compensation earner, and assuming also the "tax deficit" is about your previous compensation from your previous employer -- get your 2316 from your previous employer and submit a copy to your new employer...