Hotmail outlook email account hacked! Pls help. Password and security answer has been changed.

My hotmail account has been hacked. It was linked to my facebook so that was also affected. The hacker changed my password and security question's answer too. I have tried to recover via the online recovery form, but I dont use the email account - so I don't remember that many details. The form is returned to me with insufficient information. I would like to just close the account completely and not have the hacker use my identity and emails etc. Please help!