Poor service and poor policy

The claims department makes an error and wipes out my Medical Savings account and then proceeds to reject claims . After several emails and calls they correct the error, but do not go back and pay the claims previously rejected. Secondly, two claims for CANCER treatment in hospital are only paid in part, although I have a R200 000 approved for treatment of cancer. Reason given is that this was 'in hospital'. All items clearly indicated as ICD10-C61. Where else is one expected to have such things as brachytherapy?