Canara Bank — Fixed deposit prematurely closed without my knowledge

My father and me had a joint fd. My father passed away on 29th Jan. Now many fd's have been prematurely closed in March without my notice. None have informed me and even after multiple follow ups i have not got any response from the bank.

I need the amount back. Please look into this matter since it's a high amount of money.

I tried to call then manager Javed on this, sent him WhatsApp msgs but no response and he infact switched off his mobile number.

How can a transaction happen or get prematurely closed without informing me ?

Awaiting on your response on the same.