Airtel — Cheating

Address: 136 sukhdev nagar main airport road indore

Today i purchase a new dth connection of the airtel and i make payment online 1492 by using coupan code adtv10. After 3:00
The company executive call me and ask to pay 160 rs online without any reason. I deny to pay and ask why i give money to you. His reason is superflous. After some time i got call from the person who ask me to otp which is send by airtel. I give the otp to person after 3 min i got a reschedule message to[protected]. I can connect call ti customer service. But they not respond to me. Plese help me and sort my problem shortly