Toyota — steering wobbling while braking

Address:

600013

My name is dr prashanth arun from tamil nadu i purchased a toyota innova crysta 2.8 z on 11/11/2017 from lanson toyota chennai car number tn04 au 4449, from then i have been facing problem while braking at high speeds in the highway as the car steering wheel starts vobling and then the full car starts to shake.. I had approached the service center first when they said check tire pressure - but still the problem persisted... Then they did skimming of the disc twice but the problem still persisted after which they have changed the complete disc, pads and claiper but the problem persists.. Now my car is in lanson for the past 2 days and still i have not got ra reply what you guys are going to do and if i will get a permanent solution to this problem.. Being a doctor my daily life depends on the car and this is causing me much trouble hope toyota understand's the trouble i am going throu