Don't want to approve new membership

I have been trying to get my family on Fedhealth medical scheme for the past 2 months now. I have made numerous calls, emails and online messages with no success. My wife had a three CT scans a couple of months ago and the results was false, but now due to that Fedhealth doesn't seem to be interested in insuring us. I have send the doctors reports to Fedhealth and again no feedback or responses to any email. The sales consultant promise every week that we will have our documents by the end of the week from the under writters, but that's where it stays. I was advised to join Fedhealth due to their excellent radiology coverage. No one mention this poor service. I give up!!! I am now going to take this matter further, because they cannot declined a membership for this reason.