Terrible Service

I am a new member to Discovery medical aid. ALl I want to do is access the discovery app, if I try register it wont let you (ID already exists) if I try log in it asks for a username and password that I have not been sent or received any communication of. If I try phone to speak to somebody there are no options for this either. How can this be such a run around just to log in to an app for a new member. Terrible service.