Spice Jet Airlines — charging extra for luggage

Address:

Kamrup Metropolitan, Assam

I Chandrakala Prajapati, had taken 14 kg in my baggage and 7.5 kg in hand luggage, although i had no extra luggage in totality, I was charged for 3 kgs extra luggage at Rs. 1200 my PRN no. CELJ2H, and the flight no. is SG 341, please refund the money extra charged, moreover the ground crew member argued with every passenger, which delayed the flight by more than an hour, so please redress my complaint, otherwise I will have to seek Consumer Forum