National Highways Authority Of India [NHAI] — regarding toll gates

Hello dept of 544,
30kms away from coimbatore we got around 6-7 toll plazas with a distance of 8kms each.
Why would we have to pay the amount when you're not following the proper functioning and rules. We spent around 300 rupees within the maximum distance of 25kms. Had to wait for more than 5 minutes at each stop. As they failed to clear the line they should've waived off the charges but they didn't do so. Our vehicle number ap26cd6410.
Date:23/12/19
Timing:4:00 pm-5:00 pm
We'd be waiting for your response and we request a explanation.
Feel free to contact us at: [protected]@yahoo.com
Num:[protected]
Thank you.