Paytm — product returned within 7 days of receiving without open carton but return rejected with logic that product has been used

Address:	Anand Vihar Colony Infront of Avadh University Janaura, Faizabad, Uttar Pradesh, 224001
Website:	Paytm

I have purchased lg ro from paytm on 21st april and received it on 25th april. I have contacted lg for installation but they replied as i have purchased it from paytm, i have to contact paytm, then i have contacted paytm for same and paytm said that i have purchased lg ro then i should approach lg for my concern. Mean while i have contacted both for my query resolution but nothing happen. Then i have returned ro on 30th april evening due to bad service after sale from paytm and lg.
After 1 well my return/refund request rejected with logic that ro has been installed and my query has been resolved. Now concern is if nobody contacted me from lg as well paytm for installation then how installation could be done. I have contacted so many times with paytm customer care for my concern but always they replied that as per seller ro has been installed and my issue has been resolved. I have given them pic of sealed pack carton pic of ro, pic of ro installed at my home and conversation msgs for their confirmation that lg ro has not been installed at my home, it's kept sealed pack at my home. But they are not listening my words. I have also contacted consumer forum customer support and lodge a complaint for same but on that point also, paytm replied that my issue has been resolved. But actually lg ro carton didn't get open then how it could be installed.
I have tried a lot to convince paytm team with all supportings pics but they are not listening my words and doing faith only on their seller. Now i want justice, i want my money back with compensation as they have did alot of mental harrasment and cheated me, i am requesting them for return and refund of money giving them all actual supportings but they didn't care of it and helping their seller. I am attaching some screenshots of my followups with paytm with their revert, sealed pack ro at my home and pic of ro installed at my home.