Worst Service Ever

I recently joined Discovery Medical Aid on the Classic Saver plan. After submitting my first 2 claims on the 13th of October 2015 for a simple amount of R320.00 and R250.00 respectively paid for a vitality assessment required by Discovery, I have not received any refund for the claims despite sufficient funds available in my Savings Account. I have resent the claim to them numerous times and i have phoned them and send numerous emails, but no response. It is now almost 2 months of phoning and emailing without any response or payment. I can't help to wonder if this is the way small claims are processed, how difficult will the big ones be. This is the worst service i have ever had from a Medical Aid.