Life Healthcare pathetic service

I received a letter stating that I have an outstanding account my father who passed away in 2016. Firstly, please note that this is the first time an account has been sent to me regarding this payment. This account at the time should have been sent to GEMS (our medical aid at the time). Thirdly, Life Healthcare provided no evidence that they submitted an account to GEMS. This was an in-hospital procedure that they billed me for which usually would be covered by a comprehensive medical aid. Thirdly, the delay in requesting payment is highly suspicious and I requested confirmation from them which I did not receive.

Thanks, Dr Hohlfeld