Poor customer service

Discovery health app is nonsense and never worked for me since I have joined the scheme in March 2022. I don't have a membership card since same can be only accessed on the app as electronic card. I tried my level best to contact discovery regarding the issue but they failed. I was requested to send copies of ID which I did but to date nothing was done to resolve y issue. Now I just want to cancel my membership and have my money refunded fro three months. I cannot be a member of something I can't see or know my benefits. I am in the dark without access to the app. I have no membership card. I don't know my network hospitals or doctors. I am in the dark. Once I cancel I am going to file a complaint with the ombudsman.