Non payment of scan

On the 7th March 2015 my son had a concussion and neck & head injury. He was transported to Muelmed Hospital which is a Keycare network hospital. I was in Nelspruit away on business at the time. <br> At the hospital they requested a head and neck CT/MRI scan. <br> <br> The service provider has not been paid and an outstanding bill was sent to me. <br> <br> I queried non payment and was informed that no GP referral was done. I told them that he was transported via ambulance to the hospital and I was not there. Did they expect them to stop at our GP on route to the hospital?? <br> <br> If someone could look into this matter urgently it would be greatly appreciated.