Worst service ever!!!

About 2 weeks ago one of our Huyndai H100 1ton trucks broke down next to the highway. With it still being under warranty Hyundai Edenvale arranged for it to be towed to their workshop. After about a day they found out that the radiator had a crack in and due to that it caused problems to the engen wich they have to replace. We've received great service from the Edenvale branch within 3 days they sent the warranty claim to Hyundai Head Office. Its been over 2 weeks now and we're still waiting for a responda from the warranty department for confirmation for the parts. Without the truck we're losing business everyday. With Hyundai taking such 'good' care of their customers, what went wrong with the service towards us? If this problem is not resolved we will be taking this matter to legal as we will have to get our turnover back for the days we lost due to the warranty department of Hyundai not responding at all. We've received calls from the Manager at Hyundai Edendale saying they are struggling with the warranty department due to no responds. They are ready to fix the truck but due to LACK of reaponds they cannot proceed... this is very disappointing.