Kaizer Chiefs and Mamelodi Sundowns are believed to be interested in the skilful 24-year-old, who has played in all of his club's competitive matches this season.
But Kaftel says the former Real Kings player will only be sold if a suitable bid comes from overseas.
"That's very interesting," he tells KickOff.com.
"We aren't a selling club so they need to look elsewhere. Only overseas offers [will be entertained]."
The Lions of the North have fended off advances for their top players in the past, like when last season's National First Division joint-top goalscorer Peter Shalulile and Mothobi Mvala garnered attention.