National Highways Authority Of India [NHAI] — fastag is blacklisted at one toll plaza

Dear sir
My name is Ankur
And my car's fastag is not working at mayyar toll plaza
The operator say this fastag is black listed
But on other toll plaza the card is working properly
And my paytm fastag has full payment
No issue with paytm
Why this problem seen twice in 24 hours of tour
M not happy with ur service
Because a time we have no money then what can we do at that time