Slow Payment Processing
This is known as one of the dirtiest tricks in the books, but unfortunately it happens so much that legislation had to begin limiting the practice in 2009. So how does it work? The company sets up systems to take one week to process incoming payments, payments that arrive even six days early could get processed late and rack up a late fee. Fight this by paying electronically a week or more ahead of your due date. It may be a hassle to pay it off every week, but it may save you quite a bit of money.