I written on base my experience that idea take more billing charge.
His spend more money in advertisement but in actually them network area for 4g is small.
In more location Gujarat now olny 3g network available.
In village area 3g connection also poor so company take it charge for what.
Also company spam call come in business time.
Take it much time for DND( do not disturb) activate service around 1 week.
No any alerts for complete data use daily 1gb also value added service complete and Renewal no any alerts.
Thanks for see and forgot some writing mistake.