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Debt collector · complaint record

M.A.R.S complaints

Consumers have filed 302 complaints about M.A.R.S since 2013, 71 of them in the last 12 months (+22% on the year before). It answered 100% on time and closed 0% with relief for the customer - less often than a typical debt collector. The most common problem is attempts to collect debt not owed.

Average response record. How it works

Complaints on record
302

Since July 2013

Last 12 months
71

+22% vs the year before

Answered on time
100%

Industry: 96.5%

Closed with relief
0%

Typical debt collector: 24%

Last 30 days
3

Newest: Nov 10, 2026

Rank
#258 of 1,963

Most complained-about debt collectors

M.A.R.S complaints by month

The busiest month was March 2026 (12 complaints). Complaints in the last 12 months are up 22% on the year before. Complaints rise with a company's size and with news, so compare trends rather than totals.

How M.A.R.S answered last 12 months

  • Closed with explanation71100%

"Closed with explanation" means the company replied but gave no money back and changed nothing. What each answer means

  • Answers on time45/45100% on time
  • Relief for customers0/400% closed with relief
  • Complaint trend8/15+22% vs last year

What M.A.R.S complaints are about

Top M.A.R.S problems last 12 months

Inside "Attempts to collect debt not owed"

  • Debt is not yours 56
  • Debt was paid 12
  • Debt was result of identity theft 10
  • Debt was already discharged in bankruptcy and is no longer owed 1

Where M.A.R.S complaints come from

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Complaints per 100,000 peopleFewerMore

Most complaints: Oklahoma (107), Texas (59), Kansas (29), Mississippi (20), Arkansas (18).

M.A.R.S compared with other debt collectors

#CompanyScore12 monthsChangeOn timeReliefGrade
1Federal Adjustment BureauDebt collection5271+29%100%0%C
2Nationwide Credit & CollectionDebt collection671+39%78.9%0%F
3Merchants Adjustment ServiceDebt collection6071-37%100%0%C
4M.A.R.SDebt collection5371+22%100%0%C
5Hunt & HenriquesDebt collection6070-27%100%0%C
6Coast ProfessionalDebt collection2770+204%95.7%1%F
7Law Office of Brett M. Borland, P.CDebt collection5470+13%100%0%C
8San Diego County Credit UnionDebt collection5670-1%100%1%C

Compare side by side: M.A.R.S vs Federal Adjustment Bureau · M.A.R.S vs Nationwide Credit & Collection · M.A.R.S vs Merchants Adjustment Service · M.A.R.S vs Hunt & Henriques

What people say about M.A.R.S

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Latest M.A.R.S complaints

Full log
ReceivedAboutIssueStateAnswerOn time
Nov 10, 2026Debt collectionFalse statements or representationAttempted to collect wrong amountWAExplainedYes
Oct 30, 2026Debt collectionAttempts to collect debt not owedDebt is not yoursMIExplainedYes
Oct 29, 2026Debt collectionWritten notification about debtDidn't receive enough information to verify debtTXExplainedYes
Oct 15, 2026Debt collectionAttempts to collect debt not owedDebt is not yoursMSExplainedYes
Oct 1, 2026Debt collectionWritten notification about debtDidn't receive enough information to verify debtMOExplainedYes
Sep 29, 2026Debt collectionAttempts to collect debt not owedDebt is not yoursMIExplainedYes
Sep 29, 2026Debt collectionAttempts to collect debt not owedDebt is not yoursOKExplainedYes
Sep 16, 2026Debt collectionWritten notification about debtDidn't receive notice of right to disputeOKExplainedYes
Sep 10, 2026Debt collectionAttempts to collect debt not owedDebt is not yoursMSExplainedYes
Sep 8, 2026Debt collectionAttempts to collect debt not owedDebt is not yoursMOExplainedYes
Sep 4, 2026Debt collectionAttempts to collect debt not owedDebt is not yoursOKExplainedYes
Aug 28, 2026Credit reportingImproper use of your reportReporting company used your report improperlyKSExplainedYes

Questions about M.A.R.S

How many complaints does M.A.R.S have?

M.A.R.S has 302 complaints on record since July 2013, including 71 in the last 12 months and 3 in the last 30 days. That makes it number 569 of every company by complaints this year.

Does M.A.R.S respond to complaints?

Yes. M.A.R.S answered 100% of its complaints on time (within 15 days) and closed 0% with relief - money back or a fix; 0% ended with money back. The rest were mostly closed with an explanation only. Its Response Score is 53/100 (grade C).

What do people complain about most with M.A.R.S?
Is M.A.R.S legit?

M.A.R.S is a real company with a public complaint record: consumers have complained about it 302 times and it answers through the official complaint process. Whether it is right for you depends on the details - see is M.A.R.S legit? for the signals, red flags and how to protect yourself.

Are complaints about M.A.R.S going up or down?

Up. There were 71 complaints in the last 12 months against 58 in the 12 before (+22%). See every month.

How do I file a complaint against M.A.R.S?

Complain to M.A.R.S in writing first and keep a copy. If it isn't fixed, file an official complaint with the federal consumer financial regulator - the company must answer, usually within 15 days. Our step-by-step guide: how to file a complaint against a company. Then share your experience here so others know.

Where do most M.A.R.S complaints come from?

Most come from Oklahoma (107), Texas (59), Kansas (29). Big states file more complaints, so the map shows complaints per 100,000 people.

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Complaint records are public consumer complaints filed with U.S. regulators, checked (newest received Nov 15, 2026). Complaints are consumers' own accounts and are not verified; counts grow with a company's size. How the data works

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