Rejected Specialist Consult PMB condition

After a traumatic accident involving open fractures, emergency surgery and three weeks in hospital, my husband had to see his surgeon several weeks later for a follow up. The costs for this consult were rejected due to "Specialist referral authorisation required". Apparently, my GP, who hasn't been involved in the case at all, is not an orthopaedic specialist and has not seen my husband since his accident should make the referral? What possible value could that add? Bonitas is not in the healthcare business. They are in the business of taking member's money and rejecting claims for spurious reasons whenever they can.