When Microsoft stopped linking Microsoft Accounts I lost access to 1 of them!

I had 2 linked Microsoft accounts and each had several aliases linked to them. The moment Microsoft stopped linking Microsoft Accounts (around 20 July 2013) I lost access to 1 of them. 1 ALIAS LINKED TO THAT IS MY BUSINESS E-MAIL ADDRESS!!! Reason: the lost Microsoft Account had the format I just made up myself *** Email address is removed for privacy ***. 

Now I contacted Microsoft and they "fixed" my problem. Not really. See message below:

"Thank you for your request. Your Microsoft account *** Email address is removed for privacy *** was created using an email address from a provider other than Microsoft. To reset your password for this account, follow these steps:

1.     Click Here for the Microsoft account password reset page.

2.     Select an option and click "Reset your password".

3.     Enter your Microsoft Account, then enter the security characters, lastly click "Next".

4.     On the following page, select "Email me a reset link" and then click "Next".

5.     A reset link is now sent to your email address.

Should you require further assistance, please visit the Microsoft account Support Pages.

The account recovery request with issue number 94652952 has been closed.

Please do not reply to this message. Replies to this message are routed to an unmonitored mailbox.

Thank you,
Microsoft Support Team"

NOW THE PROBLEM IS THAT THEY E-MAILED THE RESET LINK (STEP 5) TO A NON EXISTING E-MAIL/E-MAIL I HAVE NO ACCESS TO!!!

HOW AM I EVER GOING TO GET ACCESS TO MY VERY IMPORTANT LOST MICROSOFT ACCOUNT???

I AM LOSING CLIENTS RIGHT NOW!!!

Regards,

Chantel