A recent change to the Azure SSO protocol has triggered the Microsoft Keep Me Sign In prompt to ask non-government student users to link a phone number to their account.
The PRC team do not recommend students or parents link a phone number to their PRC account. Non-government students are unable to reset their password or recover their account using this method.
The only way to reset a non-government student's password is through the school's PRC coordinator.
Students can log in without linking a phone number by following the steps below:
Click next:

Then click Skip Setup

Students will then be able to log in as usual.
Our ITD department have been notified of this issue and are currently investigating a solution.
We apologise for any inconvenience this may cause.