Bonang Matheba left Metro FM because of their unprofessionalism.
In an interview with TshisaLIVE, the SA personality revealed that she was only informed about major changes to her radio show an hour before it was set to air.
"I get there at 8.30 am [on Monday] and they are like 'oh you got a new presenter, a new producer and JJ is gone,' and I was like what?"
Bonang revealed the reason she resigned was out of "principle" and not because Lerato Kganyago was her new co-host.
"It could have been anybody else in that chair. It could have been male, female, a famous person or a non-famous person. It was principle that mattered to me."
The radio personality says that being notified of the show's changes at the last minute made her feel "bamboozled".
She even took to Twitter to express her disappointment on the incident.
"....my heart is broken. I was told about the changes to my show an hour before going on air today...," Bonang tweeted on Monday.
....my heart is broken. I was told about the changes to my show an hour before going on air today...— Bonang B* Matheba (@bonang_m) April 3, 2017