Texas toll fees

I've got runs that go through Fort Worth and the traffic with the construction and all there is bad especially around rush hour traffic so I've been taking the tolls and wow do they like their tolls there. I ran the tolls going north and then coming back south and the price came to around 66 dollars. Originally I thought they had made a mistake because they put on their bill that I had 6 axles which I do not. Regular truck with regular flatbed so 5 axles. Anyways I called them and they said they'd look into it and a couple of days later they left a message saying that they charge a flat fee for big trucks regardless of the axle count. Anyways can anyone verify that these fees are correct? I also go through Houston sam Houston tolls and the I30 tolls through Austin both are far less than the fort worth tolls. I do have an EZ tag also.

Here's the bill for this week from their website. Ridiculous.

09/22/2021 05:34:00 PM CDT
09/23/2021 09:36:20 PM CDT
TX-T552009 Josephs Semi Truck 6 NTE35W-I-35W NORTH-I35WN-820-24 NORTH IOP-I AVI Transaction -$14.80
09/22/2021 05:26:55 PM CDT
09/23/2021 09:26:17 PM CDT
TX-T552009 Josephs Semi Truck 6 NTE35W-I-30 WESTUS 287-I35W-I30WUS287-36 NORTH IOP-I AVI Transaction -$23.00
09/22/2021 11:26:01 AM CDT
09/23/2021 09:23:18 PM CDT
TX-T552009 Josephs Semi Truck 6 NTE35W-I-35W SOUTH-I35WS-820-31 SOUTH IOP-I AVI Transaction -$17.00
09/22/2021 11:22:59 AM CDT
09/23/2021 09:50:31 PM CDT
TX-T552009 Josephs Semi Truck 6 NTE35W-N TARRANT PARKWAY-I35WS-US287S-22 NORTH IOP-I AVI Transaction -$11.80

 

Right. That was the other thing the lady said. Trucks have flat rate and it changes depending on what time of day it is. Figuring out how much it will cost is a bit difficult. Is taking this toll today gonna cost me 50 bucks or 5 bucks who knows. I'll figure it out though.

 

I use both and compare the time difference. If it says taking toll will same me 30 minutes I will consider it. Most of the time it's just a 10-minute difference or around that.