Paytm Mobile Solutions — Paytm postpaid lending by Aditya birla

Hai sir,
I am Tarun kumar from Srikakulam, am using Paytm post paid. I have a problem with Paytm postpaid. Once am using Paytm post paid and paid the bill on time. But they were charged late payment and i have paid that late charge amount. Now they were blocked my account. Adding screenshot of payment receipt’s and calling customer care but not responding and didn’t connect the call, written a message also but not responding to me. Please rectify my problem sir.
My paytm postpaid account no. & phone no. [protected].