Account gone forever?

A few months ago, my sister tried to sign in to her account and was asked for a password. We do not know this password to the microsoft account and we do not know the password to the email's account at yahoo.com. I tried a microsoft account recovery but
we do not know very much about the email because my brother made it a couple years ago. I chatted on support with many microsoft workers but the chats always ended with me thinking they would contact me in the future to help me but that never happened. Eventually,
I think that they thought that they had solved my problem, or they just got annoyed that I wasn't giving up so they told me not to talk to them about this issue anymore. I am feeling like this issue will never get solved and the remaining gold, $20 of microsoft
points, and alot of acheivments will just be gone forever. The only proof that we own the account is that we own the xbox 360 that it was created on and it used to be connected to our gold family, which doesn't exist anymore because family packs are gone.

:)

 

Is there a quick way to remove data/clear my xbone?

Going to sell it so want all data and accounts gone

 

Xbox Live Perma Ban (Unban)

is it possible to unban an account as mine was marketplace fraud for things a hacker did. I have the account for like 5 years now and all the account on it is gone. can you report the account enough for the ban to be overwritten and cancelled. If so can you please report Pro5ebsterHD on xbox it would really help me out with the ban thanks.

 

Outlook.com - Microsoft free personal email plz rest ur password

 

I can't reset the password if I can't get into the email. I don't even have enough info for getting the account recovery form accepted.

 

I have almost the same problem here, Ive had my xbox live account for years, the email I used to make it has long been deactivated and I have no idea what the password is, NO ONE has been able to help me switch it to my current email. Even though its obviously
mine, payment, credit cards blah blah.. still no solution, Help?

 

Hello you two,

For Microsoft Account issues please open a case to see if they will be able to help you. In order to do this please visit the link below. You will be able to enter the affected E-Mail address. If these people cannot help you, and you cannot remember password
or have no further way of recovering you may just be asked to forget about the account, and to create a new one.

windows.microsoft.com/.../get-support

Let me know how you get on.

Regards,

Daniel