Cant be bothered to look it up yourself?
There are 6 franchises in top level SA cricket.
Dolphins
Eagles
Lions
Titans
Warriors
Cobras
They represent regions with some of the 'old' provincial sides coming together to make stronger teams. It is based on the principle of 'Strength versus Strength' but still has the quota system and a number of cricketers have lost their jobs due to the contraction of the number of teams and there are now far fewer oppotunities. The outcome is a decent standard of cricket and a flood of players to the UK, NZ etc as there are far less chances and positions than there used to be.
The 6 franchises play in 3 competitions. SuperSport Series (The FC Comp), The renamed, MTN Domestic Championship (OD Cricket) and the Standard Bank Pro20 Series (20/20).
When people talk about SA domestic cricket this is what they are refering to.
Below this level (effectively 2nd team cricket) is, the still FC status comp, SAA Provincial Challenge in which the provinces compete and in which Namibia will play. The teams are usually called the Province "Amateurs" and are made up of young guys trying to break into the Franchise team, club cricketers on the fringes of the pro game and University students. Its a good standard of cricket but is no where near professional enough or deserving of FC status. This level also plays a OD comp called the SAA Provincial Cup.
This level, despite its FC status, is virtually unknown in SA apart from the guys that play in it and carries very little prestige and zero press coverage.
Hope this answers your question.