National Highways Authority Of India [NHAI] — Additional Money Deduct

Every time when I recharge my NHAI Fastag wallet through my Bank of Baroda Debit card additional 10 INR amount deduct from my Account, Two times I talked with Bank of Baroda Branch & Two times I talked with NHAI Customer care, Both Authorities BOB & NHAI said that they are not deducted any amount so where this amount gone, Kindly address this issue because NHAI Authority Customer care giving petty answer & same way BOB Authority said - I also raised complaint in BOB