unpaid creditcard,from previous iqama

hi there !
i really opt for honest advised.im planning to go for final exit in my current company,but i was bothered with my unpaid credit card in ncr worth 3500 sr way back 2008 ,2008 when i left saudi with this outstanding balance,and came back to my new company at 2010,now i'm planning to leave again my question is,am i going to face problem in the airport during my exit?
and if i going to pay from ncb ,how much do i need to pay from 2008 up to now.
another thing i don't know my previous iqama number,and i am also afraid that if i will go to the bank they will call the police to arrest me...
i need your advise please.

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