MRI from MSA with in-hospital speciliast referral

Submitted a query re subject matter (ref *** of 16/07). Admitted to hospital for lower back pain treatment on 10/07 (authorisation number ***1) - MRI ordered by specialist on lower back - yet still billed for co-payment from MSA despite the MRI being related to the hospital admission. How can Discovery possibly claim the MRI on the lower back WAS NOT RELATED to the hospital admission for lower back pain ?? I firmly believe the co-payment of R2,600 should be reversed