HDFC Bank — hdfc fastag - incorrect transactions

This complaint is about incorrect deduction from my hdfc fastag account on 4 january 2020 at dankuni toll plaza, dankuni, west bengal. The single trip journey toll is 85 rupees where as the round trip is 125 rupees. I availed round trip journey by vehicle wb26t6013 through this toll plaza and found following deductions from my fastag account[protected].
1. Rupees 85 at 08:41:47 - correct
2. Rupees 40 at 19:07:11 - correct
3. Rupees 85 at 19:00:00 - incorrect
I tried to contact hdfc fastag customer care at[protected] but no one is picking up the call.
The last deduction is wrong and need to be rectified. Attached the screenshot of messages received regarding fastag transactions.