How to support someone who’s being cyberbullied:

Let them know you care, and that they are not alone
Be there for them: offer support and check on them regularly
Do not contact the bully
Let them know that their fear is justified and encourage them to speak out
Remind them of their value, and let them know that bullying is about the bully not the target
Encourage them to tell parents, and trusted adults such as teachers, community leaders or the police if there is a serious threat to there emotional or physical health