I did not receive important information , how is this possible?

We only communicate important announcements about the classes and performances of your 
child. We communicate by email.It is therefore essential that you can receive our mail and 
read the messages completely(Check your spam filter settings and be careful when reading mail on smartphones and tablets)!Always check your ' MY ADC' page to check if we have your 
correct email address. We are not responsible for emails not received.