Star Health And Allied Insurance — Claim Rejection & Policy Cancellation

Hi Team,
We have ported our 6 years old policy ( United India insurance Ltd.) to Star
Health and Allied Insurance on 20-Sep-2022 with all PED covered ( mentioned in policy already.

Now we admitted the patient ( Madan Singh ) to hospital on 27.4.23 at Sarvodaya Hospital Sector 8 with difficulties ( mentioned in Discharge report and after the treatment we requested to discharge our patient,

But as the TPA team asked us that please submit the lumsum amount of bill because our claim was rejected due to the reason Non Disclosure of Pre Existing disease.

now i would like to ask the question to Star health that if the policy is ported from current insurance so now it is company job to fetch & check each and every past claim record from the last insurance company.

but now they are saying that this is violation of clause mentioned in policy the policy .

apart from this claim rejection they canceled the whole policy so i would need the help so that the policy should be revived and the claim which is rejected need to provide through reimbursement.