Many card providers calculate APR based on several tables. The APR is part of the package when receiving a credit card that you must understand to avoid debt. Nowadays, nearly any company that offers consumers the ability to pay their debts via phone will charge a fee. The fee sometimes starts at $1.50 and reaches to $3.50. As you can see, to save money you want to avoid the telephone. Some companies are even charging customers for reviewing their statements, asking general questions, and so forth. Therefore, the telephone is making more money than you are if you continue to press those buttons. Therefore, if you are applying for a credit card, make sure your read the Terms & Conditions carefully to avoid overcharge. It is bad enough you have to pay your own phone bill without paying someone else