Failing to resolve our issue for weeks

My experience with Fedhealth has been terrible so far with regards to the maternity benefits. We've used up our two scans, so now it has to be taken from the savings, which we do not have problem with. Now, the medical aid is not covering the other scans for some reason which should be taken from the savings as mentioned before. We have been fighting with Fedhealth since January. Every time we call to discuss the matter, we are either given different information, we get placed on hold until our airtime runs out, until we just get fed up from holding on so long or the line drops on their end which i'm assuming they are hanging up the phone. So everytime we call back, process starts all over again which is quite annoying. Also, we keep requesting call backs via email but they never call back. If our issue is not going to be resolved soon then I will be changing my service provider.