Swiggy — no refund service eating money by bluffing

Hi
I have ordered food today it was from restaurant karahi kitchen kormangala bangalore. The food was full of oil and one small chunk of chicken and i have paid delivery charge 52 rs total food was after coupon code 152 rs. May be its nothing for swiggy but its something. These ppl denied to take complaint as well. They haven't refund money.in the end i went to have food again its charge me again.