Myntra.com — not doing the pickup for return

Address: 140 M G1 marvee apartment, Khatiwala tank, Indore, Madhya Pradesh, 452016

From 18th may 2019 i am trying to return the kotty women black jeans which i recieved on 18th may only. But the ekart logistic came after 7 days for pickup and said the bar code no. Is not matching and that the product is mismatch. I tried 20 times for return of the same product complained thrice on myntra customer care, even provided them with the bar code no. But still my pick up is not done.
I am a regualar customer at myntra but after this poor customer care support and pickup experience i will never buy at it again.