chronic medication

I have been using two types of tables since 2011 and always got that prescribed by my GP who got this approved on my chronic medication by Medihelp Necesse option. since January this year they did not want to pay the two tablets and I have been trying since then to get this sorted out. Ater I have phoned them several times, my gp also phoned and also completed the necessary online, they advised my GP now, this is 5 months later, that this must be prescribed by a specialist, my cardiologist. I phoned the medical aid this morning and after beking kept on the line for 25 min I still did not get a solution. The person at the call centre jerome advised that I had to go to a specialist. he said that if medication was prescribed by a GP, a gp can prescribe the medice again., BUT if it was prescribed by a specialist, a specialist must prescribed it again. What they totally do not look at is that my medication was prescribed in the FIRST place by a GP and that the specialist only repeated the script of the GP. I have tried to get this under their attention with no sucess.