These guys are crooks. They manage my city's water billing in California. I made a payment online which they came back and stated I entered a number in the account wrong. I checked three times before I submitted the payment and the account number was correct. There is literally no way to prove your claim. When they then charged me $25 for a "return payment fee" I called their customer service. Their rep tried to claim that the reason they charge this fee is that they are charged just like a return check fee. I then called my bank who confirmed they never charge fees on an electronic debit and that they have no record of ever sending a return check fee to this company. Subsequent calls to their customer service went no where. This is your typical 3rd party billing company shafting customers with fees as much as possible. Unfortunately I have no choice but to deal with them for my utilities.