same thing i did in 2012, its simple go to customer service D ring road and request for deletion , they will give one person who will go with you at your home to disconnect water / Electric and they will isuue you a cheque from QNB bank for balance payment, but you need to expedite in early morning to complete by 2pm if you have a same day flight, if you do this 2 days ago then u need to live without light & water. Or depends how you can convince the technician.