How to get control of hacked hotmail account


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My hotmail account has been hacked by Vigeria. I have contacted the homail suppot staff by email 6-7 times. Since my account was registered 10 years ago I cannot remember clearly the detail personnel information for this account. But I have provided many other helpful information such as: some contacts email address in my account, some title of previous emails and my computer IP for log into this account. And explained the fact my account has been hacked. But they still asked me to fill in more information and don't trust me. I don't know what can I don in this case.