Business ProfileforEZ Pass New Hampshire

On 4/7/24 we crossed the ************************ using our EZ Pass transponder in our Cadillac XT6 (2 axle) vehicle and was charged $20.62 and another charge of $5.00. I researched the charge and it should have been one charge of $4.75 On 4/13/24 we crossed the ********************************************************* and was charged $17.73 and $20.62. After researching I found the charge to be $11.75 (off peak hours) and $13.75 (peak hours).I called NH EZ Pass and was told by ***** that he would investigate and email be the results.Today I received that email which said he reached out to the agency and charges are correct??I'm not so sure about his investigation, because he should have reached out to agencies. Also there was no explanation of the charges, only that they were what they were supposed to be.This is not correct. I did research and the charges are far apart.I don't know where to turn from here. It's almost like the consumer has to take the loss based on the word of the cs ********** charged my account $100 in six days for charges to drive from *********, ** to *****, ********. We have driven to ******* many times and never incurred these charges on the two bridges above.Thanks,***** and ***************************