The mobile number for the Consulate-General’s Duty Officer has changed.
Brazilians in the United Kingdom who are in an emergency (accidents/serious illness, death, detention, domestic violence etc.) can call the assistance desk by getting in touch with these contact details: http://cglondres.itamaraty.gov.br/pt-br/assistencia_a_brasileiros.xml
The Consulate emphasises that the number should only be called in the situations described above.
Questions about consulate services should be sent via email to: http://cglondres.itamaraty.gov.br/pt-br/contatos.xml
Source: Consulate-General of Brazil in London