Three car payments behind – Nissan.. what should i ask and do?

Hi everybody, I just recently got a new car in april that i was able to well afford before getting layed off from job and having to prioritize other bills. NMAC has sent mail saying my car could be repossessed but i just my job was going to make a payment this thursday… when i first saw the mail i panic and just gave in $200 dollars as some sort of payment because that’s all i have until my first paycheck comes… i will still call them but what should i ask for and say to them? what will they offer me?