Airtel - Airtel bill paid but not marked as paid by Airtel

I have made payment of my broadband on *nd Sept Rs. ****. please refer the attachment, which is not reflected. I spoke to airtel customer care thrice with no resolution. I have made bill payment on *nd Sept [ as reflected in bank statement]. I am also attaching the bank statement with reference number. I have made advance payment of Rs.**** - Landline number is *********** and Airtel Xstream Fibre id is ************_dsl. I would expect airtel to reflect the amount to be credit to this account as it's advance payment of next *months [ September ** to Feb' **]. Service ticket raised with Airtel is ***********