Flipkart — Order id - OD[protected] Refund my coupon worth 500 rupees

Without asking me they cancelled my order and also not refunded my proper money i used coupon 500 rupees of my super coins from saller side my order was cancelled they give excuse that product is damaged that's why cancelled it amount is now high and i bought the product with coupon and card jn cheap price that's why they cancelled . same on you Flipkart. Very bad experience
My order id OD[protected]