Discovery and M sure Warranty are not up to standard their service is bad

I've been without a vehicle for almost two weeks, I had a mechanical failure to my car and I've spoken to Discovery whom my warranty is under and they work with M sure. I sent the vehicle to Jeep dealership in Amanzimtoti Durban and they diagnose the vehicle to check for faults. They the problem which is a turbocharger , immediately I called my broker from Discovery ( Imthiaz) and he ask Jeep to send the full report together with the quotation. Everything was done quickly from Imthiaz. Discovery consultant (Thabiso Madibedi) asking for service history and current mileage then I email them. It's took a week nothing is happening and I end up calling them to find out only to find out that they're rejecting my claim based of "oil leak pipe" . I said to them there's no oil leak they must cover the turbocharger and I end up calling M sure directly Wesley this week he said they mistaken my vehicle with another which has an oil leak ,he will escalate to Management. It's been two days no word from M sure and Discovery I'm stuck with no vehicle for two weeks. This Insurances sometimes they don't understand that we pay them huge amounts every month and I do need the vehicle to work and run my business. This thing is so annoying to be shift left and right as we are school kids. M sure and Discovery must sort out their house to service the clients with peace.