National Highways Authority Of India [NHAI] — Negligence and harassments at Toll plaza- Badarpur Delhi

I am from Faridabad, Haryana. Whenever I need to travel to Delhi, I go through Faridaba-Delhi highway where we are supposed to cross Badarpur Toll plaza. I have fastag installed on my car with sufficient balance. But, everytime any person on toll duty says that you don't have balance. We everytime have to show them Paytam fastag balance to cross through and have to wait for more than 30-40 seconds. If this happens everytime then what is the use of doing everything automated with such process and glitch in systems. This is public harassment as they are looting people stating low balance everytime and asking for Double amount.