Clovia.com — Regarding return of one order

Address:

T 12 new rani bagh

I have ordered some nightsuit with order no 6965486. And some wrong products received and some having size fit issue. I wanted to return the order.
I have tried with app but I am not able to initiate return request.
Then I have talked with the chat support . In that I am not able to attach any image in that.
Then I have tried with web that was also not working and raised a wrong request.
I mean what kind of behaviour is this.
I have called customer care and also I have mailed 4 times and I get only one response in past 3-4 days.
This is truly unaccepted.