Mazda Bad client service

I have Mazda BT50 2012 Model. The vehicle has done 98000km. The turbo packed up 3 times and the last time the motor packed up. Mazda only replaced 2 turbo's, the rest I had to dock up myself! Is there anything Hello Peter can help with? I feel that Mazda did not bring there part with regards to customer service and mechanical repair while this vehicle was under warranty,and now its costing me over a R100000 to repair. Please can you help me, Mazda just say its not there problem.