Cape Town - Communication Workers' Union members at Sentech have gone on strike over benefits and wage increases, CWU general secretary Thabo Mogalane said on Wednesday.
The union declared a dispute and began their strike this week, affecting operations in Johannesburg, Durban and Cape Town, he said.
Union members were demanding a 10% wage increase for the lowest paid, 9% for middle-income earners and a 7% increase for the highest-paid staff.
They also wanted a guaranteed 13th cheque in the current financial year.
Alternatively, members would settle for a 10% increase and a 13th cheque in a 2015 to 2016 agreement.
Other demands were a housing allowance of R1 450 and a moratorium on retrenchments during the wage agreement period.