Discovery medical schemes

I signed up for discovery medical scheme in May this year and advised the first debit will only go through in July due to dates etc(I did ask for June)

Almost the second week in July, I find out that I'm pregnant approximately 6 months. I did not immediately bring it to their attention as I assumed they would not cover cost. I contacted their customer care later that month in July and the representative I spoke to advised that due to myself not being aware, Discovery will not have an issue to cover my maternity however I need to get documentation from the GP I visited etc.

I got the letter from the GP who confirmed my pregnancy and booked for my first appointment with a gynae who I was referred to for a date in Aug. By this time I'm still paying cash for my visits. I emailed the relevant documents to the correct department explaining what happened. They took 6 days to provide myself with feedback which was they now added a waiting period as they say I did not disclose my pregnancy at the beginning. Ohk fair enough but I was not aware back then, I have no symptoms of being pregnant and my cycle is still irregular to which I explained. I further disputed this and got a supporting letter from my gynae to submit to their department. Once again, declined.

I don't understand how with all the documentation and evidence brought forward with no hesitation they feel I did not disclose the Info in time. How can I disclose something I'm not aware of? I have requested call recordings for myself to listen and recall the info I was advised and will be taking this matter further with all platforms of social media and the Fais Ombudsman.