Jabong.com — regarding refund of faulty product

I have purchased a jeans (Pepe jeans) sized 32 worth 3999/-. The product i received was totally different jeans (Pepe jeans) sized 28 worth 3799/-. I raised few complaints tried to communicate your service providers (They really never cared). I called them for replacement they said to wait, i called them for refund they said me to wait, i called them for pickup they again said me to wait and total waiting period concluded to 21 days. Still i am waiting. Over there i communicated with representatives named sanya, neha (Hr maybe) and many others. Now i am fed of your useless services and confrontation. Hope you will provide me the solution.