Momentum Health HORRIBLE SERVICE

Had an accident at home on the 12th of September 01:30 where i needed to to the ER room after phoning momentum at 02:11 and the call center agent told me i don't need pre authorization as the hospital would do the necessary once i get there.Now the medical aid is refusing to pay the bill and is keeping me liable saying i needed authorization and that the hospital only put the claim through after i already left.I needed x-rays and blood pressure medication as my blood pressure was badly high and was treated for hypertension and pain , momentum now blames me i dont understand why when we asked if we would need to pay the ER we were told no and now with the Bill they have a different story and excuse as to why the medical scheme that i hardly use except for my chronic medication now wont cover the bills