National Highways Authority Of India [NHAI] — Difference of Toll amount deduction

Hello Team,
I travelled on 25-Dec-2021 from Dasana toll and exit on Jakhauli for Kundali and amount deducted from Fasttag Rs. 75 (order id[protected], Vehicle no. HR05Y0805.

Then on return I travelled on 28-Dec-2021 from Jakhauli Toll and exit on Dasana then amount deducted from Fasttag Rs. 90 (order ID[protected], Vehicle no. HR05Y0805.

Why there is difference of amount as both side tax should be same.?
Can you please check and update on this?

Attaching receipts for your reference.