Who Is Calling 866-564-9578?
If you receive calls from 866-564-9578, the caller may be National Credit Management, a debt collection agency. Collectors may contact consumers about unpaid debts. However, they must follow the Fair Debt Collection Practices Act (FDCPA). This federal law protects consumers from abusive or deceptive collection practices. If National Credit Management violates the law, you may have legal options.
Your Rights Under the FDCPA
- Calls at inconvenient times – Debt collectors generally cannot call before 8 a.m. or after 9 p.m. Frequent calls meant to pressure or annoy you may violate the law.
- Harassment or abusive behavior – Collectors cannot threaten you or use offensive language. The FDCPA restricts aggressive collection tactics.
- Failure to provide written validation – National Credit Management must send written notice confirming the debt within five days after first contact.
- Discussing your debt with others – Collectors cannot share your debt details with coworkers, friends, or most family members.
- False or misleading statements – A collector cannot lie about the debt amount or falsely claim legal action.
What You Can Do About Calls from 866-564-9578
- You can request debt validation. Ask National Credit Management to send written proof that you owe the debt.
- Keep records of each call. Write down the date, time, and details of the conversation.
- You can dispute the debt in writing if the information is incorrect..
- You may also send a cease-and-desist letter requesting that the collector stop contacting you.
Protect Yourself From Debt Collection Harassment
The FDCPA allows consumers to challenge unlawful collection practices. If National Credit Management violated the law, you may qualify for compensation.
📞 Call Lemberg Law for a free consultation.
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Ways You Might See This Number
866-564-9578
866-564-9578
This could be a Debt Collector calling you.

866-564-9578

866-564-9578
Other Examples of Illegal Harassment
- Multiple calls per week or day
- Attempts to collect more than you owe
- Early morning or late night calls
- Calls to friends, neighbors, or coworkers
- Collection calls at work
- Use of obscene language
- Threats of violence, lawsuit, or arrest
- Attempts to intimidate you
- Use of obscene language
- Multiple calls from different phone numbers
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