Sign in with a code sent to your WhatsApp, or open the access link you already received.
Enter the mobile number your school registered for you. We will send a 6-digit code to that number on WhatsApp from your school's number.
If you already have the access link from WhatsApp, open it to sign in. If you no longer have it, send "login" to your school's WhatsApp number and the same link will be sent again.
Your access link stays valid until it expires, so you can open it again instead of asking for a new one.