Cricket South Africa (CSA) on Saturday was compelled to issue an apology to Cricket Australia (CA) after two of its officials were caught clicking pictures with fans wearing Sonny Bill Williams masks at St George's Park, Port Elizabeth.
Williams and Warner's now wife, Candice Warner, were involved in a toilet tryst in 2007.
While sports fans often engage in questionable behavior at stadiums, officials Eksteen, a former South Africa player, and Kazi are accused of condoning the taunting of Warner and his wife by South African supporters.
CSA president Chris Nenzani apologised to the board of Cricket Australia and its officials, team management, players and their families.
Alerted on social media that the masks were going to be brought to the game on Friday, the Australians wanted security measures taken.
Clive Eksteen and Altaaf Kazi have been ordered to CSA headquarters in Johannesburg for a meeting, and the chances are high that they could lose their jobs. "On behalf of CSA I extend my honest apologies to the board of Cricket Australia (CA), its officials, team management, players and their families", commented CSA President Chris Nenzani in a CSA statement.
Candice Warner gained recognition in Australia as an "Ironwoman" endurance athlete.
The allegations are the latest development in what has been a fractious series.
The Warner and de Kock confrontation in the first test happened when de Kock, apparently frustrated at prolonged on-field verbal abuse from Warner, responded with a comment about Warner's wife and the encounter with Williams. Incensed by disparaging remarks made by de Kock about his wife Candice, the vice-captain had to be held back by teammates on his way up the stairwell to the team dressing room.
The left-hander was fined 15 per cent of his match fee in 2014 for accusing AB de Villiers of ball tampering at the same venue. Australia's Nathan Lyon also was punished for an over-zealous celebration of a wicket in that first test.
David Warner's tumultuous tour of South Africa has gotten more dramatic, with the South Africans accusing him of cheating according to The Australian.
A ban could see Rabada miss the rest of the series, but he will contest the charge.