Prolonged delays first with auth then with claims

Treated elderly diabetic patient in March 2017. App**** for auth a week later. Several request (photos, referral letter), same done. Auth FINALLY given in July. Claims submitted a week later. No feedback or settlement of claim after several emails to follow up. Sizwe send automated response with ref no, but nothing more than the reference happens. Followed up again on 15 January to be told its a stale claim. Of course after Sizwe's delay tactics the claim will be stale. Stats show that in the world every 20 seconds a diabetic patient is losing a limb. This patient's wounds healed within 4 weeks. As a service provider I have 30 days to settle my account. Ten months later Sizwe still has not paid the practice making this small business unsustainable. I employ two people who has to be paid. From a business perspective Sizwe is sabotaging us. Even the complaints line is not in operation: complaints@sizwemedfund . Enquiries send automated response and customercare and casemanagement also non responsive. I cant bill the patient as I'm told they pay their medical aid. So I am running losses due to Sizwe's disregard for small business.