Paytm Mobile Solutions — I'm complaining about a e-commerce fraud by paytm

Address:

Near mousham vibhag m.d.v colony, Bikaner, Rajasthan, 334001

Order i'd - [protected]
Order date - 22 march 2019
Delivery date - 27 march 2019
I have ordered a jbl clip 3 from paytm for 3199 rs and i have got a cashback of 320. But i received a different product on delivery. The product that i received is a non branded small speaker which almost cost around 100 to 150 rs. I have called many times to paytm's customer care and have filed a return request but they rejected. I want my refund and this product should be picked up from my home. Pls kindly initiate my refund.