Refund disbursement stuck due to bank validation failure

1) Our Company ABC had a registration in Gujarat and Maharashtra.

2) A litigation was ongoing in Gujarat for which we paid pre-deposit in cash for filing 1st appeal from ABC GJ registration.

3) GST Registration in Gujarat was subsequently surrendered as the business in GJ shut down.

4) Subsequently the Company ABC was merged with Company XYZ.

5) Now, we are eligible to claim refund of the pre-deposit paid in GJ registration. However, we are unable to validate the bank account in ABC registration since the cancelled cheque pertains to XYZ, due to the merger, and thus unable to received the disbursed refund.