RBL Bank — harassment calls from the collection team

Website:

rblbank.com

My mother has the credit card of rbl bank but i mysel[censored]ses her card and she is unaware of any transactions going on in the card, i also make the payment on time sometimes i might get late but usually i make on time and this month statement generated on 12th feb in which the minimum amount due was 7835 which is payable by 4 mar and i made the payment of 7000 after 2 days but still i am getting the calls from their collection team, again and again, harassing me and torturing me about the payment.