Discovery is going down hill

At this moment, my husband and I are very unhappy. I was on my own medical aid using Gems for many years and decided to join my husband on his medical aid - discovery. My husband never ever had problems, so we decided to send my application in mid Feb so that I can join end of March. We found out the best news ever - I was pregnant, of course we assumed that I was registered, because we received an email stating that they have everything and everything is sorted. The first of April was my first sonar appointment, get to the doctor and hear that I was never put on the medical aid and we have to pay everything cash. It is unacceptable