Punjab National Bank [PNB] — Non accepting cash at non parent branch

Address:

440023

I am service provider of bpcl nagpur, operating a petrol pump at wadi amravati road nagpur. Bpcl has corporate tie up with fino fintech pvt ltd for its fleet card customer, which in turn have its corporate acct in pnb, acct no is - [protected], ifsc - punbo718300, as per the instruction given by company we have to deposit cash collected from our fleet card customer daily into the nearby pnb branch. But when i went to my nearby pnb branch at wadi nagpur to deposit rs 20000 in cash, pnb employee refuge to take cash and advise to deposit it into the parent branch. Please advise on this matter and morever no other bank have such restriction. It is not possible for us to deposit cash in parent branch which is in other city.