Excitel — Internet not installed and not refunding the amount of both security deposit and the yearly fee

I paid amount for Excitel new connection on 11/09/2022. They promised on same day connection and I paid 2000 rupees for security deposit for router and for yearly connection of 200 mbps amount paid is rupees 5664. They did not install any router or I never get the service from Excitel.

I requested for Refund of my whole amount 2000 + 5664 = 7664 rupees, till now no one connected me and did any refund.

Please assist on how I can raise complaint against Excitel.

The sales person name is Manoj and his phone number is [protected]