Car payment problem

Pa help nman po..
Pag nasa legal office na po ba pwede.pa.po bang inegotiate?
I was adviced kasi ng legal officer na ivoluntary surrender ko nlng yung car.
Meron po kasi akong missed payments (pdc payment) in 4 yrs ko pong pagbabayad.
Huling taon ko na this year and willing nman po ako isettle yung mga namissed out kong months pero yun nga isurrender ko daw muna yung car dalin ko daw sa head office ng bank.. then after 3 to 5 days bigyan daw ako ng computation ng need ko isettle. Pero meron po nakapagsabi saken na irerequire ako to pay the unsettled amount plus yung balance ko pa this year..bale iffull payment ko na. Ganun po b tlga.? Sana po may mkasagot salamat po