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Agency #14

Client Services, Inc.

Accounts-receivable management and BPO firm · St. Charles, Missouri

Phone-number answer

Checking a call from Client Services, Inc.?

The published phone numbers below can help you look up the company. Caller ID can be spoofed: a matching number does not authenticate a caller or prove that you owe a debt.

What happened?

Choose the situation that fits. Keep a record as you go.

Wrong person

If the call is for someone else, say they have the wrong person and ask them to stop calling your number. Do not give sensitive identity or financial details to an unverified caller.

Log the date, displayed number, callback number, voicemail, and your request. If the collector claims you owe the debt, use a written dispute explaining that it is not yours.

Log wrong-person calls Dispute a debt that is not yours

For a written dispute, use the validation-period end date printed on the notice and keep proof of submission. If you have no notice, request the validation information; do not guess a deadline. A call or log entry does not replace that dispute.

Sources
  1. CFPB debt dispute rights — Consumer Financial Protection Bureau
  2. CFPB debt collection limits — Consumer Financial Protection Bureau
Unfamiliar debt

Ask for written validation information and compare the creditor, account reference, amount, and dates with your records. Do not confirm that you owe it or agree to pay while you are still checking.

Request the debt details Dispute an unfamiliar debt Keep a collector call log

An information request is not always a dispute. If you dispute the debt, say so in writing by the notice’s printed validation-period end date and keep proof. If the notice is missing, request it; do not guess a deadline or assume collection must pause.

Sources
  1. CFPB validation notice rules — Consumer Financial Protection Bureau
  2. CFPB debt dispute rights — Consumer Financial Protection Bureau
Received a notice

Save the notice and envelope or original electronic message, and note when it arrived. Check the collector, creditor, itemized amount, account reference, and printed validation-period end date against your records.

If you dispute the debt or amount, send or submit a written dispute on or before that printed end date. Keep a copy and proof of when you sent it. A phone call or call-log entry does not replace a timely written dispute.

Build a validation dispute letter Track the notice and follow-up Check notice and deadline next steps
Sources
  1. CFPB validation notice rules — Consumer Financial Protection Bureau
  2. Regulation F § 1006.38 dispute and original-creditor request rules — Consumer Financial Protection Bureau

Court papers? A validation letter does not replace a court response. Protect the court deadline first.

Check a payment link or existing payment plan
Consumer Center
1.800.521.3236

End the incoming call and find a contact number independently through the company’s official website or your original creditor’s known contact channel. Check the written debt information separately before sharing sensitive information or paying. Why caller ID can be spoofed (FTC).

Sources for the phone answer
Sources
  1. Client Services consumer contact — Client Services, Inc.
  2. FTC phone scams and caller ID spoofing — Federal Trade Commission
  3. CFPB collector legitimacy checks — Consumer Financial Protection Bureau

Client Services, Inc. (CSI) is a debt-collection and customer-service company that collects accounts and handles support work for a range of industries.

Why this company appears here

CSI is licensed nationally where required and works across many busy industries — auto, healthcare, retail, banking, schools, utilities, government, and insurance — so its name appears on a wide variety of accounts.

Common account types

  • Financial-services accounts
  • Healthcare accounts
  • Auto accounts
  • Utilities and insurance balances

Check the company before you click or pay.

Match these details to the validation notice, credit report entry, and payment page before sharing account or bank information.

Legal name
Client Services, Inc.
Known aliases
CSI
Official website
https://www.clientservices.com/
Consumer portal
https://www.clientservices.com/consumer-center/
Phone - Consumer Center
1.800.521.3236
Last reviewed
June 11, 2026

A matching caller ID does not authenticate a caller: numbers can be spoofed. Find contact details independently through the official company website or your original creditor before responding. Separately verify the debt and any payment instructions in writing.

Identity sources
  1. Client Services consumer center — Client Services, Inc.
  2. Client Services consumer contact — Client Services, Inc.
  3. Client Services ARM — Client Services, Inc.

Find out who actually owns the account.

A collector, servicer, and debt owner are not always the same company. That affects what proof you should ask for.

Possible role: Third-party collector, ARM vendor, and BPO servicer; not a debt buyer

CSI describes itself as a call-center and collection firm that recovers debts for client businesses. It says it does not buy or sell consumer debts — so it's collecting on someone else's behalf, not as the owner of your account.

  • Do not assume CSI owns the account; ask it to identify the creditor tied to the debt and whether CSI is collecting for that creditor.

  • Ask for the CFPB-required validation information: creditor name, account number if any, itemized amount, current amount, and dispute instructions.

Role sources
  1. Client Services consumer center — Client Services, Inc.
  2. Client Services ARM — Client Services, Inc.
  3. Client Services markets and services — Client Services, Inc.
  4. CFPB validation notice rules — Consumer Financial Protection Bureau

What official records say.

Each note below comes from a dated government, regulator, court, or SEC record. Use it as background, not as proof about your specific account.

  • The Seventh Circuit affirmed dismissal of debt collection notice claims in Degroot v. Client Services, holding that CSI's zero-dollar interest and charge itemization, plus its statement that no interest would accrue during collection, did not violate federal notice rules.

    Source
    1. Degroot v. Client Services — U.S. Court of Appeals for the Seventh Circuit via GovInfo
    2. CFPB amicus page for Degroot — Consumer Financial Protection Bureau

  • The Seventh Circuit held that Client Services debt-validation notices did not clearly identify the current creditor and sent the case back for judgment in favor of the consumers on that issue.

    Source
    1. Steffek v. Client Services — U.S. Court of Appeals for the Seventh Circuit via GovInfo

Start with the facts you can check.

  • CSI has warned of fraudulent businesses using similar names, so verify the exact legal name, address, and official payment channel.
  • If you receive a call first, ask for written validation before discussing payment.

Confirm the account first.

Even a real collector can have the wrong person, wrong amount, old debt, duplicate placement, or incomplete records.

  • The collector name, mailing address, phone number, and website on the letter you received.
  • Who the original creditor was, who owns or placed the account now, the account number, balance, and date of last payment.
  • Whether the debt may be too old for a lawsuit in your state before you pay or promise to pay.
  • Whether the account appears on your official credit reports from AnnualCreditReport.com.
  • Whether this looks like the kind of account Client Services, Inc. commonly handles: Financial-services accounts, Healthcare accounts, Auto accounts, Utilities and insurance balances.
Put it in writing
Debt validation letter template Collector call log template
Sources
  1. Client Services ARM — Client Services, Inc.
  2. CFPB validation notice rules — Consumer Financial Protection Bureau
  3. FTC debt collection FAQs — Federal Trade Commission

Questions people ask about Client Services, Inc..

Use these answers to sort out roles, names, portals, and account details before responding.

Is Client Services, Inc. a real debt collector?

Yes. Client Services, Inc. says it is a third-party call center and that debt collection is one service it performs for clients. Its consumer materials also identify CSI as a debt collection agency.

Sources
  1. Client Services consumer center — Client Services, Inc.
Does CSI buy or own consumer debts?

CSI says it does not buy or sell consumer debts. It generally appears to collect accounts placed with it by creditor clients, rather than acting as the debt owner.

Sources
  1. Client Services consumer center — Client Services, Inc.
  2. Client Services consumer FAQ — Client Services, Inc.
What kinds of accounts does CSI collect or service?

CSI says its clients include banks, utilities, municipalities, county governments, private educational institutions, and medical providers. Its accounts-receivable materials list markets such as automotive, healthcare, retail, financial services, education, utilities, government, and insurance.

Sources
  1. Client Services consumer center — Client Services, Inc.
  2. Client Services ARM — Client Services, Inc.
How can I contact CSI or use its consumer/payment portal?

CSI lists Consumer Center, FAQ, Contact Us, and Online Payments links on its website. Use the CSI reference number from mailed correspondence when using online account tools, and verify the website against your written notice before paying.

Sources
  1. Client Services consumer center — Client Services, Inc.
  2. Client Services mobile consumer page — Client Services, Inc.
What if I do not recognize the debt, amount, or creditor listed by CSI?

Ask for and review validation information before paying. CFPB guidance says a validation notice should identify the creditor, amount owed, account number if any, and dispute instructions. Send or otherwise submit a written dispute on or before the validation-period end date printed on the notice. When it receives that timely dispute, the collector generally must cease collection of the debt, or any disputed portion of the debt, until it sends verification or a copy of a judgment. If it reasonably determines that a repeat dispute is duplicative—substantially the same as one it already answered, with no new and material information—it may instead send a notice explaining why and referring to its response to the earlier dispute.

Sources
  1. CFPB validation notice rules — Consumer Financial Protection Bureau
  2. CFPB debt dispute rights — Consumer Financial Protection Bureau
  3. Regulation F § 1006.38 dispute and original-creditor request rules — Consumer Financial Protection Bureau
  4. Regulation F Small Entity Compliance Guide § 12.3 (submission and receipt timing) — Consumer Financial Protection Bureau
Why does current creditor wording matter for CSI letters?

In Steffek v. Client Services, the Seventh Circuit held that a CSI collection notice did not clearly identify the current creditor because the consumer had to infer whether Chase still owned the debt. The practical takeaway is to make sure a validation notice clearly tells you who the debt is currently owed to.

Sources
  1. Steffek v. Client Services — U.S. Court of Appeals for the Seventh Circuit via GovInfo
  2. CFPB validation notice rules — Consumer Financial Protection Bureau
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