Carrier AC — money cheated as amc

Ac service complaintno receipt & no response
I had googled for carrier ac service and found contact number[protected] which claims to be a carrier ac service center. When i called to the number on 25/8/2019 lady received my call and registered my complaint and sent sms as below on same day from sms id called "md-bsmart"

I received a message stating carrier referring service technician rajesh [protected] with complaint number as shc250824 he called me on same day and sent two other staff to service the a. C. We were asked to pay ₹7100 towards annual maintenance contract and that the cash offer was in place on that day. On his demand we paid ₹7100 to rajesh through imps on andhra bank account :[protected] and disclosed ifcs no as: andb0000001. We were promised that a bill would be generated and sent by sms & email immediately. Since his name and mobile number was referred the message that was sent we believed him and paid him the money but we have been trying to call him over phone to get invoice copy but he is deliberately avoiding calls and is not responding to messages.

I believe that we have been cheated by the technician rajesh sent by customer service. Either we must be given invoice for annual maintenance contract or refund of entire money. Please take action on this complaint and do needful at earliest.

After that we noticed in the complaint forum that the same person from the no :[protected] has cheated many customers in the same way.

This leads to depression as that person also aware that i am a pregnant lady and he given many troubles by never responding.