Misuse of gst number by adutior

Sir my auditor misuse my gst number, I ran my company up to March 2021. Up to dec2020 I filed 3b returns. 3 months gst amount is 57000/- which I have not paid & pending amount and after that no transaction in my gst number to till date.but commercial tax department holded my bank account and issued the notice for gst tax amount of RS 12,68,601/- if I ask my auditor he is telling I don't know. He already changed the user I'd and password also. Now he is refusing to give the user id and password, what the solution whom I need to consult or complaint against  auditor. Please help me.