RBL Bank — pre-closure charges when told preclosure free credit card

Address:

560003

My name is azhar khan from bangalore
I had taken money from money tab app via rbl bank, while taken the loan they said no pre-closure fees and now when i cleared my amount which was taken they have charged pre-closure fees.
I am being calling rbl customer care from past 2 months and still they are yet to resolve my query, when ever i call they say our supervisor will call and till date no one has called me.
They are charging me for late payment of pre-closure fees, please help me
My name - azhar khan
Rbl credit card number [protected]
Loan amount taken - 50, 000 and cleared.
Pre-closure fees charged initially rs 2003 and now it has become rs2864.

Please help me my cibil score is effected
My phone number
[protected]