Airtel — unauthorized credit card charges

Address:

Pune, Maharashtra

In the past two months, I am facing worst experience with RBL credit card billing section. Dec month bill has been generated on[protected]. Total amount due; Rs.62537.51 and Minimum Amount due:3512.12. In bill details, they have mentioned finance charges Rs 2252.89. I do not know on what basis they have added finance charges and moreover, I have made a minimum payment of 4500 on 10th of Jan which is before the due date to avoid the unnecessary charges. but still, the bank is imposing extra charges.when I had mail conversation with the bank, they claim that they levied correct charges and it cant be reversible.