Myntra.com — Pick up not done since 2 weeks

Address:	C 303, Faculty Flats, Amity University, Panchgaon, Manesar, Gurgaon
Website:	myntra.com

I have ordered 2 sofa covers of charcoal grey colour from Myntra but I recieved the wrong product. I was delivered light grey item. I had been requesting for the pickup since 27th September but till now the pick up is not done.
Everyday I get a message in the morning that my product will be picked today and in the evening I get a bunch of messages and mail saying the pickup failed because the customer cancelled the pickup, which is a false update. No one came to pick or contact me regarding the pickup till now.
Everyday, I chat with the Myntra customer care and they say they have raised a ticket but they literally do nothing about it.
The AWB number that they have given me from Delhivery courier service for pickup are: [protected] and [protected] for the two sofa covers.
I want them to pick the product and refund money back.