National Highways Authority Of India [NHAI] — fine imposed on. my fastag for. no fault of mine

Address:

Jubilee hrudayala, Jubilee mission medical college, Thrissur, Kerala, 680005

My car was on the ernakulam thrissur nh stretch and when my car passed thru palyekara toll plaza they debited 0.00 rs for reasons unknown n when the car returned the amount deducted was a one way full amount.
I have received a message today thus:
Dear customer, icici bank fastag account linked to vrn kl70c4919 has been debited with rs 335.00 for dispute on trip number[protected] on[protected]:17:58.in case of discrepancy, please share rc copy and vehicle image by raising a complaint under dispute transaction/chargeback in fastag customer portal.
The messages i received on those two trips are as follows:
Message 1:dear customer, icici bank fastag linked vehicle no. Kl70c4919 has been debited with rs 0.00 on[protected]:46:03 for toll charges with trip number[protected] at paliyekkara toll plaza plaza on[protected]:37:43. Avl. Bal. Is rs 1496.86. Call [protected] in case of dispute. Call [protected] in case of dispute
Message 2:dear customer, icici bank fastag linked vehicle no. Kl70c4919 has been debited with rs 75.00 on[protected]:43:16 for toll charges with trip number[protected] at paliyekkara toll plaza plaza on[protected]:17:58. Avl. Bal. Is rs 1421.86. Call [protected] in case of dispute. Call [protected] in case of dispute
I don't understand wat dispute i ve caused. If i have more than enough money on my fastag it is the toll plaza's fault that they haven't deducted the amount n why am i fine for their employees fault?
I would like this to be resolved immediately and my fingers amount returned.