Snapdeal.com — My order [protected]

I ordered for a pair of puma shoes on 14th of Feb 2016 having made payment by my debit card. I got delivery on 19th Feb. The shoe did not fit well so i requested for a replacement on the same day. I was asked to send the product by courier which i did. But till date there is no update / action. The courier company (DTDC) says that the courier is lying at their office as it has been asked to "HOLD".
Worst service experience. Expected much better from Snapdeal. Thinking of going to consumer court.