Gst on telehpne bill for the month of june 2017

Bill is of June 2017 month,why i should pay GST 18?

Kindly check the date of bill generated. As per the notification cerculated by the the telecom industries they would charge the bill of June 2017 from 1st to 28th under Service Tax with a time limit to clear the bill payment till July 17th and post 28th Telecom bill will attract GST rate.

I would advice you to talk with the Service Provider.