Unable access email

I am suddenly not able to access my Hotmail account as it says my email address does not exist. I spoke to live help who sent a list of options but all failed as says email address does not exist. Any help would be great

Jill

"Email me a reset link"

1. Access your account at https://account.live.com/password/reset
2. Enter your Microsoft account and the characters you see in the picture.
3. Click on "Email me a reset link"
4. A password reset link will be sent to your registered alternate emails.
5. Access the links immediately and reset the password.

"Answering Security Questions"

1. Go to this link, https://account.live.com/password/reset.
2. Enter your account.
3. Enter the characters you see.
4. Click next.
5. You will be prompted with the options you can use to reset your password. Choose "Security Question"
6. After answering the security question, Click next and change your password.

“Answering/submitting account recovery request"

1. Access your account at https://account.live.com/password/reset
2. Enter your Microsoft account and the characters you see in the picture.
3. Click on "I cannot use any of these options"
4. Provide an alternate email where the password reset link will be sent and hit "Next"
5. Provide account information to validate your account and click "Submit"
6. Check the alternate email you provided and you can reset your password (If you passed the validation procedure)