The NEC was eventually given permission to visit the site, but only in February.
Zuma reportedly will not resign unless several conditions are met, including that key Cabinet ministers stay on in their positions.
The NEC did not discuss Zuma's removal on Wednesday as previously expected.
MPs will sit down to draft rules for how a presidential impeachment should occur.
Blade Nzimande says he is not concerned that he was not elected to the ANC's NEC.
The losing presidential candidate Nkosazana Dlamini-Zuma came in at number nine in the National Executive Committee list.
There has been a return to slate politics in the ANC -- is it a good thing?
The complaints related to allegations of intimidation and use of police and state resources to manipulate the nomination processes.
Former president Thabo Mbeki asked ANC stalwarts, its alliance partners and the country to help liberate the 105 year-old-party.
"The leadership to be elected in the 54th ANC National Conference must be fearless and unapologetic in implementing the radical economic transformation."