The Umzimkhulu Local Municipality was a participating employer in the South African Municipal Workers’ Union National Provident Fund. Certain municipal employees, with the consent of the Municipality, purported to terminate their membership of the Fund while remaining in service and instead joined the Municipal Employees Pension Fund from 1 January 2014. The Municipality thereafter stopped paying contributions to the Fund in respect of those employees. The Fund instituted proceedings to compel the Municipality to provide contribution statements and to pay arrear contributions. The High Court dismissed the application, holding that the Fund’s rules allowed in-service transfer of membership. The Fund appealed to the Supreme Court of Appeal.