Mini Mobiles Mumbai - Refund not approved by MINI MOBILES Nathani Heights Opp Railway Station Mumbai Central Mumbai

On **th February, **** I ordered an iPhone through a advertising on OLX followed by WhatsApp for further details from MINI MOBILES ,Nathani Heights, Opp. Railway Station, Mumbai Central, Mumbai.
The amount was of ***** of which I paid courier service of Rs **** in advance along with charger is of Rs ****.
The rest amount Rs ***** is of COD. The product was sent from the Blue Dart courier service, the tracking ID is ***********
The product is a highly cloned iPhone ** pro max and all the parts is of android. At first they sold me by telling a Second hand Refurbished product but this phone is highly cloned android phone which looks totally iPhone ** pro max.
I requested for a refund but they cancelled my refund request.
The seller's mobile number is **********.
The bank details of the seller is Kotak Mahindra Bank of which seller name is Junaid Boomaria, Ac No : **********
Ifsc code : KKBK*******
Hence I just want my refund!