Default English-speaking South African = heLEEN.
Default Afrikaans-speaking South African = heLEEuhnuh (pretty much. The accented middle syllable is like mere, near,
King Lear - without the r for those who sound it)
I would hope it was actually pronounced the French way and that the accents has somehow fallen off; but locally I'd expect heLEEN.
I really do not like it, and I'm not keen on
Elaine either.
Helen, however, is very near the top of my personal chart; neat, tidy, classic and sunshiny.