Affinity fails to pay claims

I am still struggling to get docter consultations from last year August and November 2019 settled. Initially Affinity claimed no banking details were on the docter's account, while the banking detials were clearly visible for all to see. They then had to resubmit it for processing, this took 30+ working days, I suppose it took them this long to find the banking details on the invoice. Eventually on 18 March they informed me they would be paying part of the amount on the next payment run. I, in the interim, settled the difference. Fast forward to 5 May 2020 and they still haven't settled the accounts or the latest submission. Forget about claiming for medication, just about nothing is covered according to their magical formulary and you still have to provide nappi codes and wait 30 plus days. Heaven forbid if we had to ever try claim for a hospital admission. Not worth the monthly fee, as you will still have to settle most if not all your medical expenses out of your own pocket. Not to mention the utter embarassment the client has by the service provider having to deal with utter incompetence and being expected to wait almost a year for payment.