Parsh Tax Solutions LLP — pan card modification. documents submitted but no reply

Address:	3 B, Ground Floor, Lane No. 2 KaharSingh State, Saiyed-ul-ajaib Westend Marg, New Delhi-110030
Website:	applypanindia.in/index.php

Parsh tax solutions has confirmed on mail on jun 30, 2020, that they have recd all documents and have sent the same for processing.
Since then, the status of my application has not changed - till date.
I have sent multiple mails and reminders and also tweets
But not a single reply from them.

I have paid the necessary 499/- fees also.

Now not sure what to do as already 1+ month has passed.

Which authority can i complaint to - for cancelling their license and this company seems to a fraud company - which i realised after surfing the net (Since there was no reply from them)