pad the bill
To inflate the charges made to someone for some product, meal, or service by adding extra, typically unnecessary or unwanted items or fees. Their website is really easy to use, but I hate that they pad the bill with so many fees and charges right at the very end. Don't let them pad the bill with extra services you don't want or need.
pad the bill
Fig. to put unnecessary or additional items on a bill to make the total cost higher. The plumber had padded the bill with things we didn't need. I was falsely accused of padding the bill.