Maternity programme registration blunder

I activated the Maternity programme via the Discover app prior to going for my doctor's visits. 2 or so months down the line I realised that my claim were not getting paid. I enquired with Discovery who told me that my registration had not been successful and I had to register again, which I did. Issue is that they are refusing to pay the claims from before the second registration. A person is pregnant for a period of 9 months, surely if my claims fall into that time frame they should be paid. I can't prove the first registration because something must have gone wrong but I shouldn't be liable for claims that pertain to pregnancy if it can be seen that the claims were during my 9 months. I'm highly disappointed because they never miss a month when it comes to debiting my account but refuse to pay for claims.