National Payments Corporation of India [NPCI] — subsidy not credited in bank account

My subsidy was previously crediting in my HDFC bank account where balance was around -4500 so I closed that account and delinked my ICICI bank account and linked again according to the instruction given by BPCL. but it's been more than 5 months my subsidy is not crediting in my aadhar updated account and I get the message that it's failed to credit. please resolve this as it's been 5 months since I am continuously contacting in the Bank, BPCL Customer care, Distributor etc. but not a single person have the knowledge what to do.Please contact me for further information as I cannot share much details because this is publicly exposed.

Mobile No:- [protected]