Myntra.com — Quality check failed eventhough every single tag was there and I have returned it within 24 hours

Hello,
This is really bad!! I never expected this from myntra at all . I ordered a jeans worth rupees 2000 from myntra and it came on 6th August when I opened it was not same colour and it looked used as well as there was fitting issue si within 15 mins I requested return and on the very next day the dilevery boy came and picked it up ..and now they are showing quality check failed ..!!! Why why why .. that's your fault myntra not my I have returned product within 24 hours and every single tag was there !!! ..I was your regular customer but this behaviour is really disappointing ..!! I want my refund back ..there is some value of money you should understand that!! ..I want my refund .. please look inti it as early as possible !!!