Keep the description useful and general
“A two-axle pickup pulls a tandem trailer three days a week; which details should I review before budgeting the route?” is enough to discuss the preparation process. No account access or statement attachment is needed.
The desk can explain how to organize a configuration and a question. It cannot verify a tag, decide an official class, inspect an account or approve a charge.
Use your own email app
The form prepares a draft link for [email protected]. Open the link, check the content and send it yourself. If your device has no email app configured, write directly to that address with the subject “Utility Trailer Toll Question” and your category.
This is a general planning contact, not a toll-provider support channel. No reply time is guaranteed.