Poor Customer Service Discovery Medical Scheme

We processed a claim last year August for covid tests done at Dischem. Apparently the incorrect code was used by Dischem. I have been back to Dischem 3 times. I have been advised 3 times telephonically we now have the correct code but we still wait. I get promised everytime it will be resolved and will receive a confirmation call within 3 to 4 days. We have never had a return call and claim still not paid up. I never get a response when i email, only an automated email advising me i will get a response in 3 to 4 working says, again no feedback received. I dont know what is going wrong with Discovery but Customer Service is a disgrace. Medical aid is expensive but poor service from Discovery.