Pathetic medical aid momentum

I am on Momentum Health and suffer from a heart condition. I contacted a broker from momentum and asked how does it work to see a cardiologist. The broker said I have to make an appointment and pay the first appointment myself and the claim it back from the medical aid. I made an appointment and paid with my debit card which I have proof of. The shoxking ammount was R7454. I the sent the claim to momentum. To my surpise they keep returning email saying the rrfunded R798 32 the shortfall was not paid because the health saver is depleated. The more I say it was never claimed from the health saver because the app was paid with debit card the more they reply with this story. So from R7454 the pay back R798.32 which is rediculous .