to the tollway to not show up in your account?

i signed up for the pay by plate since i don't have a pass and manually paid what it showed i owed at the time after my trip. i even waited a few weeks to see if more charges showed up and they didn't so i thought everything was taken care of.

i was then charged again today for a separate $ amount and my previous payment doesn't show up. it's def on my CC statement but not showing on my account.

it's not a significant amount, but i'm tempted to dispute the payment i made since they are now charging me a different amount