master problem with my hotmail

hi dear friend
some body please help me for solving of my big problem with my hotmail account. till now it's more than 2 months that i couldn't go to my hotmail address. it is
any time this message appear on my address." ...... some body else use this account" then i answer to all security question and i getting a code in my other email address. when i use this code i see this message" this code has been used already" and consequently i couldn't go to my hotmail again
i have so much important email in this address and it is for my business life
in this case i don't know what can i do what shall i do
please help me urgently
thanks and appreciated in high advance
mahdi ghourch
altenative email address: