Airtel — my bill plan is 349/- and airtel send me bill 7705/-

Address:

Rajkot, Gujarat, 360002

Airtel team member is allready call me he say your bill reduce to 10 sep-2017 but not reduce and my number outgoing servies is stop and after i pay bill and start so why my plan is 349/- i pay 7705/-

So please ask airtel any refund my payment other wise i file police fir

Airtel is not inform any notification in sms and app. Airtel say i use more data so why
I dont know where i use mobile data

So please i am poor man so please refund my payment

Thanks
My number is [protected]