But after a meeting with the South African Rugby Union (Saru) he finally apologised, along with South African rugby chief Oregan Hoskins.
The South African Rugby Union was told of the positive tests late on Sunday.
South African Rugby Union chief Mvuleli Ncula warned on Friday there were not enough black players in the current side.
BBC: SPORT | Rugby Union | Rugby World Cup | Team Pages | South Africa | Boks in new race row
On October 10th, the government and the South African Agricultural Union are due to hold a summit to discuss farm killings.
Full-back Percy Montgomery has retired from Test rugby and flanker Luke Watson withdrew after a dispute with the South African Rugby Union.
South African Rugby Union President Oregan Hoskins called it a "tragedy".
The South African Rugby Union was forced to back down and delay a final decision, but an exodus has already begun with the likes of captain John Smit and lock Victor Matfield joining French clubs.
One course might be to stop pretending it is just another member of the Organisation of African Unity or Southern African Development Community, and start developing bilateral relations with other African countries, perhaps extending the South African Customs Union free-trade agreement to them.
De Villiers says his players are playing by the same rules applied in the Super 14 competition, but are being treated unfairly by referees, and the South African Rugby Union has asked its legal representative to get an explanation for what they consider refereeing inconsistency.
"I am extremely disappointed at the manner in which the message of my supposed unavailability was conveyed to the public on Monday in a South African Rugby Union media release that stated I would not be considered for the job on the basis that I did not apply, " he said.
Dale Forbes, from the South African Municipal Workers Union (Samwu), said most members had heeded the strike call.
The South African National Defence Force Union (Sandu), which represents soldiers, said Mr Zuma should recall troops immediately, "even if it entails launching a military offensive to relieve our troops in distress", its national secretary Pikkie Greeff said.
South African President Jacob Zuma, who joined the African Union in recognizing the new leadership last month, said NATO's military intervention in Libya undermined efforts by the pan-African body to find peaceful solutions for member states.
According to the South African Clothing and Textile Workers Union, in the last three years more than 18, 000 people have lost their jobs in the sector.
Sudan claims ownership for the region, and lodged complaints with the United Nations and the African Union to pressure South Sudan to withdraw troops from its territory.
With South Africa as the designated mediator, these members of the South African Development Council and the African Union (A.U.) have failed utterly, and not for the first time.
Alex de Waal, who is advising the African Union mediation panel for South Sudan and Sudan, wrote this week that such a pipeline might take three years to build.
After making similar allowances for skills and experience, the World Bank reckons that union membership increases a South African worker's wages by 25-35%, a much higher differential than is found in other countries.
Sudan and South Sudan have been under increasing pressure from the African Union and U.N.
The South said the talks would be held through an African Union panel instead.
Sudan and South Sudan have been under increasing pressure from the African Union and Security Council to resolve the matter peacefully.
Sudan also claims ownership of Heglig and lodged complaints with the United Nations Security Council and the African Union on Wednesday, urging them to pressure South Sudan to withdraw troops from its territory.
African Customs Union (SACU), and worker remittances from South Africa supplement domestically earned income.
Last week a South African group pulled out of a bid to buy the club after the Rugby Football Union (RFU) turned down a plan to relocate to London.
BBC: SPORT | Rugby Union | English | Fans try to save Rotherham
An African Union panel will travel to both Khartoum and Juba -- the South Sudan capital -- to meet with al-Bashir and South Sudan President Salva Kiir Mayardit before the two leaders attend a summit.
CNN: Sudan denies report that South Sudan downed its fighter jet
The president of the mineworkers union, James Motlatsi, was outraged that a major mining deal executed by a black South African would be for marginal mines.
Under the rules of the Southern African Customs Union, a fledgling free-trade area, cars made in Botswana can be exported to South Africa almost duty-free.
Mr. Ban briefly summed up current cooperation with the African Union and subregional organizations in Africa, as well as the wide-ranging partnerships in Europe, South America, the Middle East, and Asia and the Pacific.
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