Myntra.com — Delayed pickup of the product

I requested return of my fablestreet black skort on 31 July 2021 and Roadster shoes on 28 July 2021 at first I got 9 August as pick up date.
Since then the pick date is extending everyday, every new day I get another extended pick up date now today it showing 26 August 2021.
I tried to contact myntra several time through toll free call mai message but my problem was not solved, even the canceled my pickup without asking me, then I rescheduled the pickup.
This is disgusting, how can a this big company be so careless.
I'm trying to contact the customer service from last many days but I all seem worthless
No one I available to talk just a computer feeded messages that too gives the incorrect information.
I used so many online sites but never expected this kind of extremely poor service from myntra.
I just regret why I choose myntra for online shopping.
One is to listen to the problem.
And I doubt that after period of 30 days myntra will cancel the return procedure.