Nawab Motors Noida, Skoda Dealer — Cheated

Hi, I bought one car from Nawab Motors, Noida, Skoda dealer, at time of purchase Ipaid them for skoda shield (covering extended warranty for 2+2 year or 100000 K.M. which ever is less), skoda is alsom promotong this thing with same, but now when I got this extended warranty its mentioning 80000 K.M., I talked to dealer he is talking round and round, and even skoda india people are also not responding on it.