I am working in Bahrain but resigned to go back home country..Can immigration detect my debts on credit card?

I have been working in Bahrain about 5 years and I resigned from my company. I will have to leave the country in 3 weeks after my visa has cancelled. But I am worried, my credit card (only 1 card) still has not been closed. Will they stop me from leaving the country? Do you think the Bank would know that my visa has been cancelled? Pls tell me what to do, I dont' have enough money to pay off that and I dont want to be held with my visa already cancelled.I will be trapped in the Bahrain.