Mahanagar Telephone Nigam [MTNL] — Excess payment made in july 2020

My bank account showed an amount of rs 177/- "to pay" against mtnl. Presuming something was due for payment during the lockdown, i made the payment. Later i recd a bill of about 4000/-

I have made all payments to date, but this amount of rs 177/- is not adjusted. Copy of my bank payment for date[protected] is attached
Thank you
Patrick