Hotmail account blocked and can't recover

My problem is that my daughter is trying to recover access to her hotmail.com account as she was logged out by the latest update on her iPhone and since we were traveling at the time in Italy (normally based in Australia), I believe that her account requested an additional level of verification and an email to be sent through to her recovery email address which is my hotmail.com account.  

But I never received any of the multiple verification emails that we have tried to send to my account to unlock/access her account.
I access my account using the MS Authenticator App on my iPhone and have my mobile phone number as an authenticated method for accessing my account, but I have no idea why I am not receiving these verification code emails and there is no way to speak/chat to a human to resolve this issue.

Microsoft can someone please either call or email me to assist me in resolving this issue.
Kind Regards,
Nathan Harding