It's appreciated that you already have taken all possible actions as a consumer of LPG yet no result. The bureaucrats designed a system that should be worked for simplifying their work. They never bother difficulties encountered by end user. There is no value for customer complaints or interactions or grievances.
Here's the last options as I already replied to other's comment:
Start a fresh bank account preferably nationalized bank and link Aadhaar with it. So that the next NPCI mapping will hopefully resolve your issues.