There is nothing to worry about. Its very simple. Jarir has no part in the scene now to clear your installment. You only need to pay 4000 QAR to your Credit Card simply by internet banking or deposit directly to your credit card through nay Commercial Bank ATM. Once you make the payment call commercial bank helpline on 44490000 and tell them that ou want to settle your payment. But this part is vey important. Calling them and telling them to settle your balance. If you don't they will not settle it and the 4000 QAR would be kept as your extra credit limit. Relax chill and finish your settlement. There is nothing to worry.