The trade union expresses fears that Cell C could be overloading newly-created jobs, as it combines positions into fewer posts.
The new Samsung?Note?4 smartphone is now available at Telkom stores countrywide.
The Right2Know Campaign accuses SA's operators of getting rich from citizens exercising their right to communicate.
Fixed-line communication penetration rated a mere 3.6% in 2013, but mobile is reaching saturation point.
The region's handset market shipped 64 million units in the second quarter, with SA and Egypt among Africa's leaders, the IDC says.
A Durban-based customer is given the chance to own an aeroplane in the operator's promotional competition that kicked off in June.
The operator says customers can register to use voice identification for security access through the My Vodacom app and the call centre.
The new high-end device is coming to SA next month. Here are 10 of its key features.?
The competition raging on local soil shows no signs of slowing down, with new entrants and aggressive offerings expected next year.
The operator launches the high-speed mobile technology in Maseru, with other regions in the country to follow shortly.
Inbound SMS is an effective way of managing customers' requests; however, companies are reluctant to employ this technology, says LogicSMS.
Trade union Solidarity says as many as 190 of Cell C's staff members could be affected by retrenchments.