Help! I created a free teams organisation on my personal account and now getting this message.

Hi jenallam
The pop-up you mention "More information required" is the result of the Microsoft "Self-service Password Reset" what looks to be enabled on the Tenant you log on to.
In the normal and automatic procedure what follows after this step: you are asked to provide additional information and is directly validated.
For e-mail: you'll receive an email with the code to confirm
For mobile phone: you'll receive an SMS with the code to confirm.
After the correct codes and confirmation, your Tenant has proper information to provide a Password Reset initiative from you. 
Your mobile number and/or email address is stored with your account information of the Domain, and you are not asked again the next login.
If this procedure does not work (proper) i would suggest to try the Teams client or use a completely different Internetbrowser session.

Does this help you?

Kind regards