Recover previous email

I know this topic already bring up few times and closed. But the problems still there. I still can't get back the previous mail in my Hotmail when I change to new interface. Can someone provide me the solution or give me the helping hand? I have faced the same issue in lycos mail, but I just need to drop a email to their service team and I able to get back all my emails in the couple days. That why I wonder why I cant get the same service from here? Please advise.. Thank