It seems Telkom Mobile is the best? They offer 10GB daytime and 10GB night data for R299/month.
Vodacom's deal comes at around R550. And Afrihost mobile is around R500 or so?
TM: 5GB + 15GB @ R199/month (month-to-month contract)
Are you looking at Wifi of some description or is 3g/LTE ok as well?
Also are you fine with being locked into a contract?
Neotel is under R200 a month but their speeds are non existent.
TM: 5GB + 15GB @ R199/month (month-to-month contract)
Also look at what has the best signal where you are going to primarily be using the connection.
There's no point going for the cheapest and the signal turns out to be horrendous.
Is this with MTN?