Airtel — international roaming billing

Address:

Pune, Maharashtra

I had activated international roaming of 1 day @649 on airtel postpaid mobile no. It's been two months and i am charged rs 649 for some specific days which is not explainable and the bill amount is huge i had deactivated the 649 plan from my airtel app last month itself. There are incoming charges + monthly rentals plus taxes. Total bill has crossed 8000 rupees.