MTN has launched a month-to-month contract option - but it comes at a significant premium.
More about 'airtime'
MTN's new month-to-month contracts: cheaper than prepaid, but 30% pricier than normal contracts
Andrew Thompson, Business Insider SA
Telkom Mobile is still down in parts of South Africa - and clients now demand free data
Telkom’s website and app have also been down for the past 24 hours.
MTN will give some clients R100 airtime and 100MB for free after their data was wiped out
MTN said a "technical error" impacted customer accounts.