Hey there! Nice to meet you!
Based on what you have mentioned, "sending an sms code to reset the password also fails to complete. (cannot use this authentication method right now)", this is an indication that the account has been temporarily blocked from resetting the password as a security measure due to unusual activity.
Since your client is unable to recover her account via the account recovery web form, kindly try to have her perform these steps to resolve an account block:
- Try using different devices and network services to reset her password.
- Wait 24 hours, but please make sure not to reset the password within that timeframe, as this may reset the cooldown.
If the issue persists after 24 hours, try waiting exactly 48 hours before resetting the password again.
Lastly, I highly recommend checking the official Microsoft article regarding account blocks, particularly the "I see a Try another verification method message" tab: https://support.microsoft.com/account-billing/troubleshooting-verification-code-issues-409090c4-92b5-42b9-8ae6-bcc97e62fc48#:~:text=If%20you%20received%20a%20Microsoft%20verification%20code%20that%20you%20did#:~:text=If%20you%20received%20a%20Microsoft%20verification%20code%20that%20you%20did
Thank you for your understanding! Please feel free to let me know if you need anything else.
Best regards,
Darhyl