https://support.google.com/admanager/thread/323469232?hl=en&sjid=5129920277733935242-NC

https://support.google.com/edu/classroom/thread/323463679/contact-us-%EF%BC%B7%EF%BD%88%EF%BD%81%EF%BD%94-%EF%BD%89%EF%BD%93-%EF%BD%94%EF%BD%88%EF%BD%85-%EF%BD%8E%EF%BD%95%EF%BD%8D%EF%BD%82%EF%BD%85%EF%BD%92-%EF%BD%86%EF%BD%8F%EF%BD%92-%EF%BC%8B%EF%BC%91-%EF%BC%98%EF%BC%95%EF%BC%95-%EF%BC%92%EF%BC%93%EF%BC%92-%EF%BC%95%EF%BC%94%EF%BC%96%EF%BC%93%EF%BC%9F

https://support.google.com/phoneapp/thread/323467938?hl=en&sjid=5667560291920738610-NA

https://support.google.com/edu/classroom/thread/323464246/%EF%BC%B7%EF%BD%88%EF%BD%81%EF%BD%94-%EF%BD%8E%EF%BD%95%EF%BD%8D%EF%BD%82%EF%BD%85%EF%BD%92-%EF%BD%89%EF%BD%93-%EF%BC%91-%EF%BC%98%EF%BC%90%EF%BC%90%EF%BC%8D%EF%BC%92%EF%BC%93%EF%BC%97%EF%BC%8D%EF%BC%92%EF%BC%97%EF%BC%94%EF%BC%97%EF%BC%9F

https://support.google.com/admanager/thread/323467228?hl=en&sjid=7679618022485181308-NC

https://support.google.com/admanager/thread/323467750?hl=en&sjid=3168016232442142120-NA

https://support.google.com/edu/classroom/thread/323463905/%EF%BC%B7%EF%BD%88%EF%BD%81%EF%BD%94-%EF%BD%89%EF%BD%93-%EF%BD%94%EF%BD%88%EF%BD%85-%EF%BD%8E%EF%BD%95%EF%BD%8D%EF%BD%82%EF%BD%85%EF%BD%92-%EF%BD%86%EF%BD%8F%EF%BD%92-%EF%BC%8B%EF%BC%91-%EF%BC%98%EF%BC%95%EF%BC%95-%EF%BC%92%EF%BC%93%EF%BC%92-%EF%BC%95%EF%BC%94%EF%BC%96%EF%BC%93%EF%BC%9F

https://support.google.com/admanager/thread/323452016?hl=en

https://support.google.com/phoneapp/thread/323466649?hl=en&sjid=434259144383910598-NC