MATUSA is a minority trade union. The majority unions SAMWU (representing 56% of employees) and IMATU (representing 36% of employees) together with SALGA are parties to the South African Local Government Bargaining Council (SALGBC), which is the registered bargaining council for local government covering all 257 local municipalities. In August 2015, these parties concluded a collective agreement setting a threshold of representativeness at 15% for organisational rights. In September 2015, they concluded an agency shop agreement under section 25 of the LRA authorising a fee equivalent to 1% of all employees' salaries (not exceeding R75) for non-members of SAMWU and IMATU. MATUSA has been granted organisational rights at various municipalities, including stop-order rights under section 13 of the LRA to deduct membership subscriptions from its members' wages. Various municipalities maintained they were obliged to deduct both the agency fee payable to SAMWU and IMATU, and the subscription fee payable to MATUSA from MATUSA members' wages. MATUSA challenged this practice, arguing that once stop-order rights were extended to it under section 21(8C) of the LRA, this overrode the agency shop agreement.