Your credit score partly depends on your credit utilization – the amount of debt you carry as compared to the total amount of debt available to you. If all of your credit cards are maxed out, opening a new one increases your available debt and causes your utilization ratio to go down, and that could help your score. But your score will take a ding any time you carry a high balance on any one card. So if you transfer multiple balances to a single card and get close to (or reach) your credit limit, your score will suffer even if your other cards are paid off.
If you use the second method — and this if the first time you rehabilitated the student loan — the default associated with the loan will also be removed from your credit reports. Although the late payments associated with the loan will remain for up to seven years from the date of your first late payment, having the default removed could help your score.
Credit reporting companies must investigate the items you question within 30 days — unless they consider your dispute frivolous. They also must forward all the relevant data you provide about the inaccuracy to the organization that provided the information. After the information provider gets notice of a dispute from the credit reporting company, it must investigate, review the relevant information, and report the results back to the credit reporting company. If the investigation reveals that the disputed information is inaccurate, the information provider has to notify the nationwide credit reporting companies so they can correct it in your file.