Irritated

I was the main member on my previous medical aid now I'm on my husband's medical aid as a dependent but every time my Dr submit a new prescription to these people I get a message that say your medical aid has been terminated I mean really every time I send through new details don't they update there system. Between them and the Dr I don't where the problem is. I'm so frustrated I whatsapp them and they reply after 15 to 40 minutes really and when you phone they take forever to answer I just can't win with who ever Is in the wrong here.