Voltas — Delivery of defunct Voltas ac

Delivery a defunct Voltas 1.5 ton inverter 3S split AC
Sir
I bought a Voltas 1.5 ton inverter 3S split Ac on 29/08/2021 from Great Eastern Retail Pvt. LTD Kolkata. The AC was delivered to me on 30/08/2021 and it was installed on the same day by authorised person. But after installation I was informed by them the AC was defunct. I paid total Rs.33000. + Rs.3000. for AC charge and installation charge but the ac is not functioning and lying at defunct position since 30/08/2021. My. Complaint no is [protected]. My mob.no is [protected] and mail [protected]@gmail.com. An early action taken reply is expected.
Regards