A National Legislative Assembly member representing Rejaf Payam of Juba County in Central Equatoria State refuted BBC report that SPLM/A in opposition in Addis Ababa peace talks wanted him to participate on their side.
Luka Tombekana Monoja termed the report as blackmailing and politically insulting.
He said he was surprised to hear that he was invited to mediate conflicts.
Dr Monoja added that he was not afraid of risks involved in naming him publicly since his life was at risk for over 40 years in politics.
He said if either of the parties wanted him for mediation, he should be consulted directly on telephone since they were colleagues in the SPLM party and parliament, instead of blackmailing.
He said SPLM members could vote by secret ballots if the leadership so wished and that it was up to the party leadership to experience the consequences of the decision to endorse voting by show of hands.
Dr Monoja added that voting by show of hands was not a point of argument, but a provision that could be amended if the system wished.
The senior politician said voting by secret ballots did not require knowledge of reading and writing as claimed by SPLM chairmanship.
Dr Monoja said he attended December 6 SPLM press conference by Dr Riek Machar as a party member and was not able to attend the successive conference conducted by James Wani Igga because he was not informed.
He dismissed reports that he and Dr Peter Adwok Nyaba were detained together with others.