(Bloomberg) -- The insolvency of Rene Benko’s troubled property empire took a tumultuous turn Monday after the insolvency administrator for Signa’s umbrella organization said representatives in other key units of the opaque conglomerate rejected overtures to coordinate the restructuring.Most Read from BloombergTraders Line Up for ‘Once-in-a-Generation’ Emerging Markets BetBlackstone Is Building a $25 Billion Empire of Power-Hungry Data CentersTrump Cash Stockpile at Risk From $450 Million Dual V