Getting message:Account does not exist

I tried to log into my account today but kept getting

"That Microsoft account doesn't exist. Enter a different email address or get a new account."

It was working this morning but now i can't get on

Hi warpmaster,

Are you sure that you typed in your full email address correctly when logging in?

If it works this morning it shouldn't have been deactivated.

Please let us know if this was a temporary problem or if you still can not login.

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