shoddy warranty claim. Mahindra SA

My S6 mahindra bakkies differential is out of order after only 50000km,under warranty and way too soon. The right rear wheel locks in right turns thus this tyre loses tread at an alarming rate,Mahindra SA is giving me the run around. First, they ask for a photo of the open diff.Then they ask for a photo of the right rear tyre.Then they ask for a photo of all the tyres.Now they want me to take the vehicle to the dealer to be stripped for more photos leaving with no transport