Final exit

hello i am expat here in ksa then i will go exit. now im having a problem about my exit. because i have 2 post paid account in zain. the other was using with my friend and the other was mine.
my company terminate me, i dont have money to pay the close account so i go to zain office and explain. they told me no problem if i cannot pay. also theres no problem in immigration if i exit.
i want to know itf that was true, because i dont want to face a problem in airport. also i dont have money if the immigration tell that i need to pay tgat

please anyone give me an advice to solve my problem.