A member of the Economic Freedom Fighters, he serves on the party's Central Command Team, its highest decision-making structure.

He was elected as an additional member of the EFF's Central Command Team structure, the party's highest decision-making structure between congresses, at the EFF's elective conference in December 2019.

[1] In July 2020, an investigation by the Digital Forensic Lab (DFRLab) linked the race-baiting Tracy Zille Twitter account used to spread disparaging and racist content and to harass black women to Matumba.

[3] The South African Human Rights Commission (SAHRC) then took Matumba to the Equality Court after it received a complaint from a member of the public.

[5] The Equality Court case was set to continue on 26 January 2022, but it was postponed to allow Matumba to be sworn in as an EFF Member of the National Assembly.