Delay in Authorization due to dubious reasons

I lodged a claim with MiWay on Monday 16 December 2024 to have my shattered window replaced. They sent me an email that AutoBoys in the East Rand will provide the service. Right now they’re not authorizing the claim to have the window replaced because they want me to use a generic glass as AutoBoys only has OEM spec. As such, this is expensive according to MiWay therefore I’m being directed to a company called DigiCall who only works with PG Glass & Glass Fit - this will not authorize my claim with AutoBoys Ironically PG Glass called me that they placed an order with the OEM for my vehicles as they don’t have stock. I’ve never defaulted on payment of my premiums, I pay in full every month yet now I’m supposed to get a generic window as a replacement because the OEM is expensive? MiWay is disappointing in this regard. I’m hoping that this will get to someone as I am told that there’s no Conplaints Department with MiWay. I have a father that’s sick back home, I was supposed to have driven on Tuesday and now it’s almost the end of the week because of MiWay red tape as it seems they’re trying to push for PG Glass (who already stated that they can order directly from the OEM), yet they cannot authorize for AutoBoys which will also get the window from the same OEM. Can someone please assist as this is a matter of urgency.