Fastag — regarding debit of extra charges on fastag

Hi sir,
I have bought a fastag from pos... My vehicle register number is mh09fb2842... I top up the nhai prepaid wallet from debit card... On 7th feb i had rs.260 balance in my fastag wallet... I crossed kini toll plaza near kolhapur... My fastag was showing blacklisted... Then they scanned by hand scanner... Rs.75 got debited... Later for return journey on same day i had about rs.300 in my wallet.. My vehicle was passed through but i did not get any sms of debit of money from my wallet... On 14th feb i got a sms saying rs.170 has been debited for txn ref no.[protected] which was the first time when it was showing blacklisted even if i had rs.260 in my wallet... Now i dont know how to raise a dispute as the toll free numbers are hopeless and are never reachable.. Im attaching screenshots for which the money was cut. Even after having sufficient balance.