Myntra.com — Myntra scamming me over return of items

1.Myntra rejected my 2 return items that I returned within half an hour and was picked up within another half an hour, saying it was used/damaged.
These are products I didn't even try on as there was a marked difference between my expectations and received product quality. I returned promptly.
After haggling with customer care for more than 2 days who don't try to solve the issue and instead keep repeating their generic statements like a parrot, finally yesterday I got anothe option to return them this time a flash sign which means doorstep refund.
This time, their delivery hub people called and said since it's a repeat return - they won't pick-up unless prior pre-approval is given from customer care.
For this I wasted an hour with the customer care during which they kept me holding up repeatedly to check this and that, and essentially said that they can't do any kind of approval despite what the delivery people are saying and they can only raise another ticket for re-check through which I can only "hope" for a fair resolution and they cannot give any assurance.
And I checked with delivery people again and they're saying they've not received anything to change their course of action.
Now I'm totally in limbo regarding what to do.
Delivery and customer care people are both repeating their own words again and again and they're contradictory to each other.
2. There was another item I had returned together with the above 2, which was delivered a week earlier, but I couldn't return to being busy last week, this was also rejected. Regarding this the customer care is even more adamant that this is definitely a used product since it's a week old. What kind of nonsense is this ? Why do you do big advertisements about 15 day hassle free return if you're not gonna follow it and harrass people.
Overall, what I feel is myntra is trying to scam customers so that they don't have to take back the inferior products they're selling under the guise of premium-looking show-off, and similar issues have been reported my many other users in different forums as well.
I'm running out of patience and if any fair outcome is not provided by myntra within mext couple of days, not only they'll lose a family of customers, I'll go straight to consumer affairs forum of my state, who in my experience, are pretty active in this kind o[censored]nfair business practices by companies trying to scam people and they'll hand down myntra a far costlier lesson that they won't forget.