Paytm Mobile Solutions — Paytm Postpaid Overcharge on late fees

I apne paytm postpaid account on July 2022 and spend 2156 rupees. I not able to pay due on 07th Aug which is last days so as per charge 250 rupees should be charge as[protected] late fees charge is 250 but paytm postpaid charge 500 to me.Please resolve and provide 250 back.