Let me help you out!
4285.71 is an OTC that is excluded of VAT; that's 4,800Php with VAT and I can only conclude that this is indeed a One Time Charge for a handset. What is your plan? And what handset did you avail? This will be helpful in order for me to determine the cash out for the said plan.
My plan is 999 and my handset is blackberry bold, I already paid 3000+ for the hand held upon my application.
Thank you for the help!