No Refunds or Replies from Discovery Health

I Submitted a claim on 5 November for my wife's annual visit to her Oncologist. followed up with another two emails and got automated reply that they would contact me. Also tried phoning but waited and waited (long delays due to our help desk people working from home!!!! Nothing so submitted a complaint on their website ref:***) 2nd Dec and got acknowledgement that it would be dealt with 24 hrs. Just went on their website today and cant find any reference or feedback on my complaint. Dave