Unisyn Enterprises — tata sky booked and not installed... no response on phone number

Address:

Hyderabad, Telangana, 500014

I have booked 2 connections of tatasky and paid an amount of 1550 and 1550 through paytm to unisyn hyderabad. The executive said tht you will receive a confirmation call and the connection will be installed, but now there is no response even from the toll free number given and also the executive. The executive was mr akram (Sajid), and the number is [protected]