First of all, if you don't pay your credit card bills there are several unpleasant things that will happen like creditors calling, being reported to the credit bureaus, and legal action taken against you. You don't want creditors calling you at home and work. Even if they follow the legal guidelines, you will feel like you're being harassed. Next, you will be reported to the credit bureaus and negative marks will be made against your credit. Not good. The final resort your creditors will take is filing legal action against you such as garnishing your wages or putting liens against you. They don't like to do this because it is a lot of work, but they definitely will.