Disheartening response Discovery

I am feeling quite disheartened by Discovery. I paid my updated premium following the addition of my newborn which is R6k. I even called discovery and they confirmed that this was what I needed to pay. However, they attempted to deduct another 2k on the 1st and upon contacting them I was informed that I needed to pay R8k. I am on unpaid maternity leave and told them I was not aware and can’t make another 2k payment. They are now threatening to cancel my membership this week. I said I will be able to pay the oustanding 2k end of July. Currently I am not able to afford it without a salary for this month and having paid additional costs to cover the birth considering Discovery does not cover all aspects. I asked if I could be offered some time to pay end of July and was told no. I have been a loyal and consistent payer of my premiums for years and feel disheartened that this is the response I am provided in a time of need and uncer*****y.