Once the default goes on your credit file it remains there until the bill is paid in full. Now, if you did not make the purchase the first thing you want to do is file a dispute. 

The problem however, defaults remain on your credit file for a period of time before they are removed. The upside is fighting for your rights and disputing the allegations made against you are telling creditors that some boo-booed. If either you have credit cards and purchased an item or service on the card and the service or item was defeated, you must first dispute the problem with the providers. 

After you have disputed the issues with the providers, you will next contact your credit card lender and inform them of the defaults on your credit report. DO NOT pay on items or services that done you wrong, since this means the creditors will view you in a different light. 

If you have, insurance policies are delinquent on your bills, you might loose your coverage, however in some cases you might be in more trouble than you realize. Read all terms & agreements as well as any other fine prints before obligating your self to a contract. If there is a default against you on your policy contact your provider immediately and try to work out a plan. 

By making contact, you could save your insurance as well as additional debts added to your accounts. Anyone that lends you a line of creditor subjects you to defaults if you cannot make payments. If you have defaults on your credit files make sure that you work to pay the debts down to avoid complications.