Unpaid claims again with no communication

The first time Discovery authorised my hospital preadmission which , the claims for hospital and my co-payment was not paid.<br> I struggled for a month for them to rectify this , and it was eventually.<br> Now again I went for the same procedure , and again payments are not made and this again having logged an incident about this with no communication back after 5 working days.. Very bad service from Discovery, very disappointed , and this after being told that everything is covered and I am on their 2nd highest plan.