I just discovered this new easier toll set up which stops the wrangle with car hire pick up counters. You need to be flying in and out of Orlando. It's only a few months old. Stops those ridiculous charges they try to foist on you. HTH
https://www.visitortollpass.com/?gadsource=1&gclid=CjwKCAjwoa2xBhACEiwA1sb1BCjKXiLLJdU1oTMGKuq-YPLEsdTAZ8w5XUCJiB74tkTQwcZxzbrirhoCXi8QAvDD_BwE