Toyota Corolla Gli Automatic 2012 Model — dealership fraud

i bought a brans new toyota corolla 2012 model from toyota showroom two monts back and after two months while getting it inspected from another toyota showroom it was revealed that the car wass accidented earlier and was repainted and sold to me as brandnew by toyota show room. i launched complaint but after 2 months now toyota is still not responding or replying on my complain and keeps on saying wait your case is under process.