National Highways Authority Of India [NHAI] — TOLL PLAZA charged higher through fastag

Address:

Pallikonda Toll Plaza

We travelled beyond Pallikonda on 14th August 2022, so we crossed Pallikonda Toll plaza and within an hour we travelled back as a round trip. For round trip they supposed to take 105rs but they 50rs while crossing and again 105rs while traveling back within an hour.

How come this happening even after fastag. It is very easy to loot the money instead of paying exact cash. No message received for this transaction from NHAI. We have login fastag manually to check the deduction.