Paytm Mobile Solutions — paytm mall product return rejection

I had ordered a sweater from paytm mall for my mom, the size was small, so i decided to exchange the product for a larger size but it was not available so u had to return it. After 2 days i placed a return request as i was out of station for 2 days. The very same day my return request was accepted and a courier was arranged which turns out to be xpressbees. I get all the details via sms related to the person who is gonna pick my order like his name and phone number. I tried to reach him in his number but the incoming in his number was blocked so i was unable to contact him. Later that day i got a notification that the return was attempted i neither recieved a call from the person nor the person came to my place. Again 2nd day i got the very same message but the result was same nobody came then i decided to complain about this to paytm i called them up told them the entire thing and they promised me that it will be picked up by the end of the day or we will again arrange for the pickup. Again the pick up was scheduled but no use. I was in constant touch with the paytm support team via the app. Then i messaged them and told them that the order was not picked they told me that the order will be picked up by 20th august but today i got a notification that the return is rejected.
So is this some kind of a joke?
You # # don't come to pickup the order and later blame it on the customer and reject the return wow nice strategy. I # want to return the product i don't know what you are gonna do i want to return it as simple as that.
Order id: [protected]