Flipkart - Received defective product No proper response from Flipkart

I purchased GT player gaming chair from flipkart(Order ID - OD******************). It got delivered on *rd of oct. I received a defective piece, so i complaint to customer service executive and they asked me to upload the photo copy, i did and it has been approved for pickup on oct *rd. Later, they said it will be picked up before oct ** and replacement will happen within oct **. But, No one came for the pickup till oct **. I reached to customer support and asked for the update. They said seller is not responding we are working on priority and asked me to wait for ** to ** hrs. I waited till oct ** and again raised a question, another executive came and said the same. I asked them to raised a complaint to higher authorities. They have created a compliant request(IN********************). They said team will get back in **hrs. One people called me and i explained everything again they said we will escalate this issue to the seller. Asked me to wait for another **hrs. I waited for many **hr and **hrs and flipkart card executive said they are escalating everytime to the seller but no one provided the proper solution when it will he picked or replaced. I totally disappointed with this purchase from flipkart and the customer support flipkart gives to the consumers. I am writing this message on Oct **, still now there is no tracking id or nothing. I purchased through credit card EMI. I did not used the product for *day but i paid my *st EMI for this purchase. I am raising this complaint with hope that atleast here i find a solution or the refund of my money.