In the letter seen by News24 and sent earlier in July, party caucus chief whip Lutho Suka said the approach of the provincial executive committee (PEC) and national executive committee (NEC) deployees into the affairs of the ANC in the metro should be discursive and participatory and not be instructive on how the affairs of its unique politics were run.
Suka said a new culture was emerging of no engagement with deployees but instead what was communicated was instruction.
"The absence of the PEC and the NEC is noted with concern as its presence would alleviate a lot of the unnecessary elements which arise as a result.
"The absence opens a space for uncalculated political interventions that have a potential to collapse the existence and continuity of both the metro and the black caucus.
"It becomes difficult when allegations of corruption of some key ANC officials such as RTT convener and co-ordinator respectively, who are said to have benefitted from the Covid-19 budget kickbacks are raised.
"These matters are raised within the municipal coalition caucus against the soul of the organisation and, for us, there is no upper structure to adjudicate the matter in the absence of the PEC/NEC. This also strains the capacity of the whippery to deal with the corruption allegations of both the municipality and organisational officials at the same time," Suka wrote.
Earlier in July, The Herald reported that SACP district secretary Lunga Nombexeza opened a case of fraud and corruption against RTT convener Luyolo Nqakula, alleging he had received R300 000 from a Free State company that was contracted by the City to deliver toilets to informal settlements.
Nqakula could not be reached for comment.
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Lungisa said the caucus would remain united and firm against those "within the RTT who were accused of corruption".
"A song was sung when we came in 2016 that here are the thieves. The song has been changed. What we will never allow is for the song to return. With no fear or favour there will be no middle ground, if anybody who is taking us to war, we are prepared to go to war".
He added allegations of corruption against party members in Covid-19-related contracts had been flagged to Luthuli House.
"We have raised allegations of corruption internally in the province but nobody has the appetite to attend. We have escalated the matter to the SG.
"We are hoping later it will be attended but if it is not attended, the people of the metro will address any other aspects themselves, if all the allegations of corruption against those who are in the RTT position are not attended. The matter will be in the hands of the community later," he warned.