Here's what you can do if a debt collector engages in illegal activity:

1. Tell Them to Stop

Under the FDCPA, you have the right to tell a collection agency employee to stop contacting you. Simply send a letter stating that you want the collection agency to cease all communications with you. All agency employees are then prohibited from contacting you, except to tell you that collection efforts have ended or that the collection agency or original creditor may sue you. You can do this even if the collector is not breaking the law, but many debt counselors feel that, unless you're judgment proof or truly plan to file for bankruptcy, the best overall advice is not to ignore the debt or try and hide from the debt collector. Usually, the longer you put off resolving the issue, the worse the situation and the consequences will become. Whether you negotiate directly with the collector or obtain a lawyer's assistance, many counselors feel the best strategy almost always is to engage the collector.

2. Document Illegal Behavior

If a debt collector breaks the law, document the violation as soon as it happens. Start a log -- and write down what happened, when it happened, and who witnessed it. Then, try to have another person present (or on the phone) during all future communications with the collector. In some states, you can record phone conversations without the debt collector's knowledge. In others, this tactic is illegal. Check with your state consumer protection agency to find out what is permitted where you live.

3. File a Complaint

File an official complaint with the Federal Trade Commission (FTC), the federal agency that oversees collection agencies. Ask the FTC to send you a complaint form, or just write a letter. Contact the Federal Trade Commission at 6th and Pennsylvania Ave. NW, Washington, DC 20580, www.ftc.gov/ftc/complaint.htm. Include the collection agency's name and address, the name of the collector, the dates and times of the conversations, and the names of any witnesses. Attach copies of all offending materials you received and a copy of any tape you made.