Hugely disappointment

Recently I purchase a Maruti Dzire on cash down payment on 13th Oct 2013 from bagga link motors silver colour DL 13CA XXXX. After 3 days I saw that colour of paint faints(blackish) at 3 sides of car, I inform bagga link at patpatganj but they said that after rubbing it will go no, their person rub them with petrol, but black spot are still their. After 2 hrs they said that due to body cover colour it fainted and will regain with in 15-20 days in sunlight. But spots are still visible thay said that maruti enginner will make a visit to car on 25th october as every thrusday. But 3 THRUSDAY PASSED & nobody comes, I was hugely dissappointed for manufactuters paint shop where vehicles was painted. Soon I realise the spots at the bottom side of car on all sides.The red  rust spots are  visible at the bottom side of car. I was cheated & realise that old body has been repainted and given to me.