State Bank Of India [SBI] — Credit card payment settlement issue

Last year in August, I had settlement for 2, 18, 000
I had paid three emi
65, 000
65, 000
56, 000
but I had forgot to pay 10, 000
after almost one year later sbi customer care calling and asking me to pay 57, 000. I wonder why should I pay 57, 000 instead of 10, 000. I don't have such a big amount to pay. I have facing trouble. Here I have mistakes and bank side also have mistakes, there are calling me after almost one year later