So I just logged in and it made me confirm the account and choose a new, more stringent password.
Once logged in, the last transaction it registers is from 11/17. I use toll roads basically every workday, so it is likely missing about 30 transactions.
It shows two replenishments back in September and October that were for amounts that I did not make, nor would any normal person have made them for these amounts. $74.30 and $75.10.
There is no where in the "Manage Account" that you can see what your current balance is. If you want to know your balance, you have to go to "Pay a Bill" that is not part of "Manage Account".'
I can't say for sure, but the remaining balance that it shows in my account right now is likely correct for what it was as of the last known transaction (11/17).
I was able to create a new payment method and make a one time payment of $20. After adding that, I went back to "Pay a Bill" and the prepaid balance did increase by $20