RBL Bank — Credit card settlement option due to high interest rates

Address:

#58, 2nd floor, 1st main, 1st cross, Reflexo Housing Society,, Opposite SBI Omkar Layout Branch, Dr Vishnuvardhan Road

I have a rbl supercard and I have been paying minimum due amount for the last 13 months with occasional payment of higher amounts.
Now, the card has a due of 68797 and I'm approaching the bank to provide me a settlement where I can pay 50-52k and close it since I have already paid a lot of interest in the last 13 months, between feb 2020-march 2021. The person I spoke to at Richmond circle RBL Branch on March 25 2021 in person was Rude and unresponsive and refused to provide any settlement. Asked me to pay full amount and hand over the card. The bank should teach their staff some manners on how to talk to customers.
I need a response from the bank immediately with a settlement amount which will be cleared within 3-4 days.
I'm running out of options here and will be forced to take some legal professional help if the bank does not help me out from their side. I expect a response at the earliest.