Poor service Discovery.

My medical scheme (Discovery) does not provide dental benefits. Discovery paid part of account at the service provider (Dentist). Reason unknown. The service provider wrote the amount of R647.80 back to Discovery. I have a nil balance account from the service provider which confirm this. Since February 2025 I am involved with Discovery employees by phone and email. They insist that I must repay R647.80. I have a bank payment conformation of payment to the service provider. Apart that this option was not available, the account was paid in full by me personally. Usually the service from Discovery was impeccable I terminated my membership at Discovery . With this unpleasant and *********** actions in mind, I do not regret it.