Allegations that former cabinet minister Stuart Robert intervened to help friends negotiate a lucrative Centrelink contract will be "thoroughly" investigated, NDIS Minister Bill Shorten says.
Nine newspapers have reported that consulting firm Synergy360, whose shareholders are close friends of Mr Robert, claimed in leaked emails that the then-NDIS minister had allegedly met with them several times over a multi-million-dollar Centrelink contract, which was ultimately won by a client of the firm.