Non issuance of insurance against Over draft

1. My father sanctioned an over draft of 50 lakhs in Feb 2020 which incurred a processing charge, property insurance and credit protect insurance. The charges for the same had been debited by the bank. 2. Acknowledgment of the above charges received. Property insurance policy received and credit protect insurance not received. 3. In next Feb 2021, my father enhanced his limit to 90 lakhs where in only processing fees and property insurance have been debited by bank. 4. Father died on May 2021. One week after his death, I informed bank of his death and found out the credit protect insurance acknowledgment to clear off the debt. I couldn’t find the credit protect insurance policy document. 5. Four months after repeated request to the bank, the bank in their official mail id mailed an alleged policy document with terms and conditions signed on September 2021(after my fathers death) sent to my mail id . The insurance company is the banks’ sister concern. The policy document also noted the expiry of insurance on Feb 2021 saying for term one year. 6. With the policy number enclosed in the alleged policy, I enquired with the insurance company. 7. The insurance company reported that there’s no such policy issued in my fathers name with that policy number and said details in mail. And I collected more proofs in this regard. 8. November 2021, I filed a case in consumer court where maintainability is in question now. 9. April 2022, they filed a case against legal heirs in DRT. 10. May 2022, I filed a CMP with the above case. Please advise