Fustrating service

Am pregnant and have notified discovery of my pregnancy as they have already authorised the delivery of my baby as well however thanks to discovery i can nolonger continue to visit my gynaecologist as they are refusing to pay him apparently because i need their authorisation to visit him in their 2018 key care brochure its clearly stated i dont need referal or authorisation to visit a gynaecologist for maternity related issues why is my case different am fustrated at the service am getting from discovery i feel like they only care about our money nothing else why are they giving us information then rejects our claims based on the information dats not even there why dont i need authorisation or referal to see my optometrist this is pathetic anf Fustrating