Delaware EZ Pass We paid $4 in cash but was sent a $54 bill anyway. dover delaware

So we travelled through Delaware EZ Pass on 07-17-19. We went to the cash booth and paid the required $4 for our Toyota Sienna. We made sure that we had cash with us whenever we use that route since we don't have EZ Pass.

A couple of weeks later and to our total surprise we received a bill of $54 which includes their outrageos fees. We decided to contest it by mail explaining to them that we did pay the required $4 in cash and that maybe they should review their videos to check to see if the misitake was ontheir end. They replied that we did not give them sufficient evidence.

We did not request a reciept (no idea if they do provide one) and no idea what else we would have done to convince them. Obviously it did not occur to us to do anything else at the time besides paying in cash and moving on. 

Its really bad to have to pay such a high amount for a toll that we sure we paid for in full at the time.