It's appreciated that you already have taken all possible actions as a consumer of LPG yet no result. The bureaucrats designed a system which they think it should be worked to simplify their work. There is no value for customer interactions or resolving grievances.
Here's the last options as I already discussed reply to other's comment:
Start a fresh account and link Aadhaar with another bank preferably nationalized bank. So that the next NPCI mapping will hopefully resolve your issues.