Non responsive Discovery Health

My husband and I have been waiting since Sept 2021 for a resolution on whether Discovery health will be paying our service provider after they administered our covid vaccinations. My claim was originally rejected as Discovery stated the provider was not on their network. President Ramaphosa is desperately trying to get people to vaccinate. When we do, our health insurance won't pay. I have called Discovery numerous times and have emailed them at the executive office and no one is coming back to me after months.