National Payments Corporation of India [NPCI] — Release of Amount

Your employe Mr Rajiv Mittal phone no is [protected] send me Income Tax notice for payment of Rs 5785000.00 to pay Rs 9100.00 as tax for the yr 2021-22. I had paid Rs 9100.00 two time in two different accounts as under :-
GBIS SERVICE ACCOUNT NO [protected] on 17 Mar 2021 and another pay in City finance account no [protected] on 13 Apr 2021.
But my amount wan not released yet. Mr Mittal says that he is employe of NPCI department and working in accounts department. Another person is Mr Surender Singh phone no is [protected]. Both mob no's are switched off since I paid the amount on 13 Apr 21. Please do the needful. Both person not contacting me till dt. Please provide me any landline no of NPCI department of Delhi. And how I can verify person calling from NPCI department.

Regards

Santosh Kumkale
[protected]
[protected]@gmail.com