You can request support and/or report cases of domestic violence to the National Support Network for Victims of Domestic Violence [Rede Nacional de Apoio a Vítimas de Violência Doméstica]. Simply send a message to SMS Line 3060 or call 800 202 148. The service is free to use and operates 24/7.
It is also possible to report cases of domestic violence to the Guarda Nacional Republicana (GNR) or the police (PSP). You can do this via the Electronic Complaint Portal.