Credit Repair is actually the process of removing inaccurate, unfounded, out of date, false, and erroneous information from your credit report. Your credit report dictates your credit score. The 3 major credit bureaus collect information from lenders, creditors, and debt collectors and apply it to your credit report.
Based on that information, your credit score is determined. This information could include the balances on loans or credit cards, credit inquiries, debt to income ratio, and most importantly, credit utilization (the percentage of debt you have to available credit).