My hotmail account has been hacked and I really need assistance urgently!

I created this new outlook account because my old hotmail account (my***@hotmail.com) has been hacked since three days ago and now I can't open the account. When I tried to login three days ago, Microsoft told me that someone might have used the account, so I either have to enter the code in alternative e-mail or fill in a questionnaire. But I noticed that the alternative email, and the security question have been changed by the hacker. So, I  tried to fill in the account recovery questionnaire to retrieve my account back but until today there's no response from Microsoft. Suddenly the password has been changed and it seems that Microsoft has given the access for this account to the hacker. It seems that my answers are not good enough because the hacker has changed the security question, and I rarely use this account to send emails to others in the past few months, so I can't really recall the exact title of the recent message that I sent out using this e-mail. I've also called the support team yesterday (ref no: 1216250261) and I was told that I will receive an e-mail on how to get my account back but until now I haven't received it.

Every time I set up an account online or do online shopping, I use this account. I also use it to create facebook, to connect with old schools, to do online shopping, to attach my work files to work from home, for my school projects and many other things for 14 years!!! I have this account since I started my college. I am desperate right now, because this account contains lots of my personal information, bank account details and work related files and I am now afraid that the hacker will use this info :(. I tried my best to change all the accounts which has link to this e-mail I can think of, but I am not sure if there are others that I can't remember. I still have some of e-mails for this account in my laptop which uses Windows 8 and has linked to the microsoft account because I has been synchonize with hotmail when I use my laptop last month to check e-mail but I mostly check my e-mail with my iPad or desktop. I can still access my laptop with my Microsoft account password but I cant download new e-mails and I can't access my skydrive. I remember that I have work related files in my skydrive :(.  I really really need help to get this account back.  Please don't tell me the link for account recovery again as I have tried to request three times and still no response. However, I can give you a lot more other verifications that I'm the real owner of this account. I am so desperate now as the hacker owns my account while I'm, the legitimate account holder, worried of ID theft and misuse of my personal information. PLEASE could someone help me? I'm really worried and desperate :(:(