Controversial couple Shawn and Sibusiso Mpisane have been unsuccessful in their bid to overturn a restraint order on their assets, says a report.

Controversial businessperson Shaun Mpisane has been awarded tenders worth R455-million after a settlement that allowed her to bypass normal processes.

Shawn Mpisane, one half of the controversial Mpisane couple, has been arrested on allegations of fraud as NPA search for assets worth R140-million.