I'm Being Sued by a Customer Under the Missouri Merchandising Practices Act

Here is the part that raises the stakes: a winning MMPA plaintiff can recover not just actual damages but, in the court's discretion, punitive damages and attorney's fees. That fee-shifting is exactly why plaintiffs' lawyers like the MMPA — it can make even a modest claim worth pursuing and pushes your settlement exposure higher than the dispute itself might suggest. But the 2020 reforms gave defendants real tools, and many MMPA suits do not fit the statute as well as the plaintiff hopes. This guide is about moving deliberately: protect yourself, preserve your record, and find the weak points in the claim.

First, do not contact the customer — and calendar your deadline

The instinct to call the customer and "straighten this out" is natural and almost always a mistake once a lawsuit is filed.

• Don't contact the plaintiff directly. Anything you say can be used against you, and an awkward apology can be recast as an admission. All communication should now run through counsel.
• Calendar the response deadline immediately. A Missouri petition comes with a strict window to file a responsive pleading (typically measured from the date you were served). Missing it can lead to a default judgment — losing without ever arguing the merits. This is the single most urgent item on your list.
• Find your service date. Note exactly when and how you were served, because the clock runs from there and the method of service can itself be a defense if it was improper.

Treat the deadline as the hard floor of everything else. You can investigate the claim, but not at the cost of blowing the date to respond.

Preserve everything — put a litigation hold in place

The moment you reasonably anticipate litigation, you have a duty to preserve relevant records. Destroying or "cleaning up" documents now can be far more damaging than the underlying claim.

• Issue a litigation hold. Tell anyone in your business who touches relevant records — sales, billing, service, IT — to stop deleting or altering anything related to this customer or transaction. That includes emails, texts, voicemails, CRM notes, and backups.
• Gather the transaction file. Collect the contract, invoices, advertisements, quotes, work orders, warranty terms, and every written or text communication with the customer. The record cuts both ways — yours can defeat the claim.
• Photograph and date physical evidence. If the dispute involves a product, repair, or job site, document its actual condition now, before conditions change.

Do not edit, backdate, or "improve" any document. The deception the MMPA punishes is exactly the kind of conduct that tampering creates — don't hand the plaintiff a new claim.

Notify your insurer right away

Many business owners assume an MMPA suit isn't covered. Sometimes it is, and the only way to know is to report it.

• Check your policies. General liability, professional liability (errors and omissions), and some specialized policies may provide a defense, indemnity, or both for claims arising from your business dealings.
• Report promptly and in writing. Most policies require prompt notice of a claim, and late notice can forfeit coverage you were entitled to. Report even if you're unsure it applies — let the insurer decide.
• Ask about a defense. If the policy covers the claim, the insurer may owe you a defense and may appoint counsel, which changes your cost calculus entirely.

A covered claim can shift the financial burden — including the cost of defending — off your books. Don't leave that on the table.

Attack the threshold: is this transaction even covered?

Before fighting over what happened, ask whether the MMPA's private remedy applies at all. The 2020 reforms (codified in RSMo § 407.025) gave defendants several gatekeeping defenses.

• Personal, family, or household purpose. The private right of action generally requires that the customer bought or leased the merchandise primarily for personal, family, or household purposes. A purely business-to-business sale is usually outside the private MMPA remedy — so if your customer bought for resale, for a company, or for a commercial use, that may end the claim before it reaches the facts.
• Reasonable-consumer standard. The plaintiff must show the practice would deceive a reasonable consumer and that they themselves acted as a reasonable consumer would. A claim built on an unreasonable reading, or on ignoring clear disclosures, is vulnerable.
• Reliance and ascertainable loss. The customer must prove they relied on the conduct and suffered an ascertainable loss, typically measured by the benefit-of-the-bargain rule — the gap between what was promised and what was actually delivered. Speculative, emotional, or unmeasurable harm generally won't satisfy this.
• Individualized proof. Damages must be shown with individualized evidence, not presumptions or group-wide formulas — a meaningful hurdle, especially in class claims.

Each is a potential early off-ramp. If the customer can't clear even one, the private MMPA claim may not stand.

Plan your defense and weigh settlement against the fee risk

Once you understand the gaps in the claim, you and your counsel can choose a path. Match the strategy to the strength of the suit.

• Consider early dispositive motions. If the transaction wasn't for a household purpose, or the petition fails to plead reliance or a concrete loss, a motion to dismiss or for summary judgment may dispose of the case early and economically.
• Test reliance and loss. Probe whether the customer actually relied on the alleged misrepresentation and whether they can put a real, benefit-of-the-bargain dollar figure on their loss. Weak proof here undercuts both liability and damages.
• Look for your own documentation defenses. Clear disclosures, a signed contract, accurate advertising, and a paper trail showing you delivered what you promised are powerful answers to a deception claim.
• Weigh settlement honestly against fee-shifting. Because the MMPA lets a court award the plaintiff's attorney's fees, the cost of losing can dwarf the actual damages. That risk is real, but the 2020 reforms also direct courts to weigh proportionality between fees and the recovery — which limits runaway fee awards and strengthens your settlement position when the claimed loss is small.

The goal is a clear-eyed read on exposure: a claim with a weak threshold and a tiny loss is a different problem than a documented deception with a large, provable loss.

Frequently Asked Questions