tatasky

I have just buy new tatasky connection before 10-12 days,juss aftr tht its not working even not a channel… I have tried customer service no. Provided by company… But there z no solution comes throughout. ..i have also make calls to tatasky engineer who installed system..but nothing beneficial founds…he never took my phone calls..no response from there…plzzz take a suitable step for… It iz worst service i have ever seen