If American Coradius International (ACI) has appeared on your credit report or is calling you, the debt likely traces to a bank, credit card issuer, student loan servicer, or digital payment account. ACI is a Buffalo, New York agency that has specialized in financial institution collections since 1989.
Two specific complaint patterns are worth knowing. First, a 2018 class action accused ACI of sending collection letters that failed to disclose whether the balance would increase due to interest or fees. Second, a 2025 BBB complaint describes ACI refusing to accept payment from someone trying to pay a family member’s debt in full, while continuing to report the collection.
This guide covers who ACI is, what their complaint record reveals, and how to respond.
Who Is American Coradius International?
American Coradius International, LLC is a third-party debt collection agency founded in 1989 in Amherst, New York. The company is led by CEO Brian Peek and compliance is overseen by Director of Compliance Daniel F. ACI is BBB-accredited with an A+ rating despite over 100 BBB complaints in the past three years and 40+ CFPB complaints on file.
ACI collects exclusively on behalf of original creditors and returns accounts to those creditors when accounts cannot be resolved.
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Why ACI Is on Your Credit Report
ACI specializes in financial institution collections. Common account types include:
- Credit cards: Bank-issued and retail card balances.
- Personal and auto loans: Consumer installment loan deficiencies.
- Student loans: Defaulted private and federal student loan balances.
- Digital payment accounts: PayPal and Affirm are confirmed clients.
- Banks and credit unions: Checking overdrafts and other bank account balances.
- Insurance claims: ACI also handles collections on insurance-related balances.
If you have no outstanding financial institution debt and ACI is on your report, investigate for identity errors immediately. A documented BBB complaint describes ACI pursuing a consumer over a fake PayPal account used in a fraud scheme.
The Missing Interest Disclosure Class Action
In 2018, a proposed class action out of New York alleged that ACI sent collection letters that failed to include required “safe harbor” language disclosing whether the balance stated in the letter would increase over time due to interest or fees. The lawsuit argued that ACI’s letters were misleading because interest was accruing on the creditor’s contract but the letter did not say so.
If you received a collection letter from ACI that listed a balance but did not state whether interest or fees were accruing, that letter may constitute an FDCPA violation. Keep any ACI letters you receive. A consumer protection attorney can evaluate whether the letter’s language supports a claim.
Refusing Payment From Third Parties
A documented 2025 BBB complaint describes a consumer who attempted to pay a family member’s ACI collection account in full over the phone. The ACI representative refused to accept payment because the caller was not the account holder. ACI continued collection reporting while refusing a good-faith payment offer.
While debt collectors are restricted in what they can discuss with non-account holders for privacy reasons, refusing a payment offer from someone willing to pay in full while continuing to pursue the account and report it is worth documenting and raising with a consumer attorney.
Inappropriate Personal Questioning
A documented consumer complaint describes an ACI representative who, during a call about a student loan, interrogated the consumer about their legal situation, their ex-partner, whether the ex had assets, and why the consumer had hired a lawyer. The consumer reported that none of these questions were relevant to the account and that the representative was extremely rude.
Under the FDCPA, debt collectors cannot engage in oppressive or harassing conduct. Questions designed to extract information about a consumer’s legal representation or their ex-partner’s finances go beyond the scope of legitimate collection communication.
What ACI Cannot Do Under Federal Law
The FDCPA applies to American Coradius International. Under federal law, they cannot:
- Send collection letters without interest/fee disclosures: Subject of the 2018 class action.
- Use harassing or inappropriate questioning: Documented consumer complaint pattern.
- Threaten legal action not intended: A documented complaint pattern.
- Call at odd hours: Contact is only allowed between 8 a.m. and 9 p.m. in your time zone.
- Continue robocalls after a stop request: TCPA violations are documented.
- Collect on fraudulent debts: A documented CFPB complaint pattern.
New York has a 3-year statute of limitations on most consumer debts. File federal complaints at consumerfinance.gov and state complaints with the New York Attorney General’s Consumer Protection Bureau.
Verify the Debt Before Paying Anything
Do not pay or admit the debt is yours until you have verified it. Send a written debt validation request by certified mail within 30 days of first contact. Ask for the original creditor, the account number, the balance at referral, and a clear statement of whether interest or fees have been or will be added to the stated balance.
That last point is directly tied to the 2018 class action. If ACI cannot clearly state whether interest is accruing, that is a documentation gap worth raising.
How to Check Your Credit Report for ACI Errors
Pull your credit reports from all three bureaus at AnnualCreditReport.com. Is the balance correct? Is the original creditor accurately identified? Does the same underlying debt appear under both the original creditor and ACI? Any inaccuracy is grounds for a dispute with each credit bureau.
Your Options for Resolving an ACI Account
Once you have verified the debt, consider your options:
- Negotiate a settlement: ACI may accept reduced amounts on older accounts. Get any agreement in writing before paying.
- Request a pay-for-delete: Ask whether ACI will remove the account in exchange for payment. Get it in writing first.
- Review any ACI letters for FDCPA violations: If a letter lacks interest/fee disclosure language, consult a consumer attorney.
- Dispute if inaccurate: If the debt involves fraud, was already paid, or contains errors, dispute with the credit bureaus.
How to Contact American Coradius International
Handle all communication in writing whenever possible:
- Address: American Coradius International, LLC, 2420 Sweet Home Rd, Suite 150, Amherst, NY 14228
- Phone: (800) 759-2241
Bottom Line
ACI is a financial institution specialist with a 2018 class action over misleading collection letters and documented complaints about refusing good-faith payments. Review any letter they send carefully for missing interest disclosures, and consult a consumer attorney if the language is unclear or absent.
New York’s 3-year statute of limitations is one of the shortest in the country and gives you real leverage on older financial institution debt. Check the original delinquency date before responding to any ACI contact.
Brooke Banks is a personal finance writer specializing in credit, debt, and smart money management. She helps readers understand their rights, build better credit, and make confident financial decisions with clear, practical advice.