Theres an Easy Pass App if you care enough and want to see the charges. They will go on your credit card (in my case debit card) but they get batched up overnight as "EDC/Ecommerce" on my statement . The app tells you the fee, date, time ,car number and toll gate (in Thai). I've had zero problems on the payements side but some charges came several days late presumably because the camera had a misread and they had to process them manually.