3I Infotech — I'm complaining about the bond that has been matured vide bondholder no 0003-761 but money not being received

I had a bond which has been matured on 21 May 2023. Bond holder number is mentioned in the subject line. I do not know what is the process to get the maturity amount. Since past one month, I have marked multiple emails to your department but no response is received from your side. Apart from this, I have also visited ICICI Bank to get the clarity about how to get the money but no response given from their side aswell.