My ex-spouse keeps sending a barrage of messages and monitoring my social media. How do I stop it?

Limit communication to the children's matters only, use one channel, and keep evidence of every incident of harassment. Tell them once, clearly, for example: ‘I will only reply to messages about the children through this app.’ After that, do not respond to other messages. Update your privacy settings, block accounts where necessary, and change your account passwords. Take screenshots of harassing messages along with their dates. If the messages carry threats or they follow you, call the police on 999 and make a report. Talian Kasih 15999 can offer support and advice on next steps. Read also privacy.