Credit scores — they’re like report cards for grown-ups. It’s a three-digit “grade” you get on a scale that ranges from 300 to 850. Your score indicates your creditworthiness to potential lenders, banks, landlords, insurance companies, and even to some employers, for instance. I’m sure you know that the higher your score the better.

FICO isn’t the only number used to determine your credit risk — the score that counts is the one your lender uses. There is no single credit score number — the compilers of the widely accepted FICO Credit Score allow lenders to customize their system, so different lenders produce different scores.

A credit score is either a blessing or a curse cast down upon you from the digital cloud. A score of 740 qualifies you for the best interest rate on a conventional mortgage. A score under 640 means ugly interest, and a number under 620 makes it very hard to get a mortgage at all.

Most people can get confused when it comes to checking their credit scores. Consumers wonder which credit score should they check, what’s the best credit score website and are credit scores really free? These questions are asked often, but rarely do people find the right answers.

Writing a quality credit dispute letter will help you get the results you want to improve your credit score. There are many samples available on the Internet, but you have to ensure that they contain certain elements before you copy and use them. Here are some qualities of a successful credit dispute letter and advice on including them in yours.