Does Fedhealth not want to pay the claim?

I was with Fedhealth for quite some time but due to a new job I had to move to Discovery. As soon as I left the company and was able to choose my own Medical Aid I went straight back to Fedhealth and I am now beginning to wonder why. I submitted a claim on the 9th of February. After a few weeks I phoned them to find out what was going on and was told the wrong Med Aid was on the claim. I had received ZERO communication informing me of the mistake. I then phoned the Dr who corrected this and I sent the correct statement through. Once again I had to phone to ask what the problem was now and was told the codes were incorrect and it was rejected. I spoke to the Dr again who informed me that this was in fact the correct code. I then had to phone AGAIN and was informed the codes were incorrect AGAIN and AGAIN received no communication. I am beginning to think that Fedhealth does not want to pay the claim and that they know absolutely nothing about communicating with their clients.