Airtel — airtel samsung s9 delivery fraud!!!

Have ordered for samsung galaxy s9 on 13.6.2018 from airtel store. Order id 10037734. Then on 20.06.2018 i got the message that my product will be delivered at anytime on 20.6.2018. I did not received any contact no of delivery person. And no one called me or tried to deliver my product. Then on 20.6.2018 at 8.10pm i got message from airtel that "hi bhabani, we tried to deliver your samsung galaxy s9 (64 gb, coral blue) but could not succeed. We will try again (Today/tomorrow)". How can i get this type of message when no one called me.. Its now 8.12 pm today 21.06.2018, i am waiting for my product to be delivered. Still no one contacting me regarding delivery. I also not getting info about the vulcan courier which will deliver my product. Gone to airtel store today at cuttack, and they said they have no information regarding this. Please help me or refund my down payment of rs.6490 which i have paid. My airtel no [protected]