RBL Bank — Bogus charges have been levied on my Credit Card and Bank is deliberately harassing under the name of Bank Policy

This is Gaurav Arora, I have a RBL bank super card with a credit limit of 4.91L. Few months ago, I was invited for a Zomato Edition card with an additional credit limit.
When I received the edition card the credit limit was the same as 4.9L and it was confirmed that its a shared credit limit and the account remains the same.

I have other credit cards too where I have 2 credit cards of SBI and Citibank where they have different accounts and different credit limits whereas I have 2 cards of axis and icici where its the same like RBL and credit limit is common for the cards.
It does not matter which card you swipe and which card you pay, it goes to the same account, but RBL has a different policy on this term.

Edition card due was 35808
Super card due was 454566
Total due across all cards 490374

Payment on Edition card: 45950
Payment on Super card:444500
Total payment across all cards 490550

Ideally, I paid the total amount which was due and as per the due date but when I checked my RBL app today it was showing that I owe 10066 on Super card which didn't make any sense.

Due date was 4th and I reached out to the customer care on 8th and they did not help and rather they disconnected the call after 53 mins.

I sent an email on 10th and the bank did not revert to my email and waited for the statement and after generating the statement, bank reached out to me stating that as per there policy even if card share the same credit limit we will have to pay the amount as per the billing statements.

I am using credit cards since 2005 and I have never come across a situation like this.

I tried multiple times but they are pretty stubborn to accept their mistake or not willing to understand customer point of view.

I would really appreciate if you can look into it and do the needful.

Also, please let me know if you feel that I was at fault.

Thanks & Regards
Gaurav Arora