T-Mobile has been the target of several major class action lawsuits in recent years. The largest, a $350 million settlement over the 2021 data breach that exposed personal information belonging to roughly 76.6 million people, has already paid out. Two other cases are active: a suit accusing T-Mobile of breaking “lifetime” price promises on legacy plans, and a newer complaint challenging the monthly Regulatory Programs and Telco Recovery Fee. Here is what each case covers, where it stands, and what it means if you are or were a T-Mobile customer.
The 2021 Data Breach Settlement
In August 2021, T-Mobile disclosed that an attacker had broken into its systems through an unprotected gateway and stolen data belonging to about 76.6 million current, former, and prospective customers.1Security.org. T-Mobile Data Breaches For roughly 7.8 million active postpaid accounts, the compromised data included names, dates of birth, Social Security numbers, and driver’s license numbers. Around 40 million former or prospective customer records also had Social Security and ID data stolen, and about 850,000 prepaid customers had names, phone numbers, and account PINs exposed. T-Mobile said there was no indication that financial or payment card data was accessed.2T-Mobile. Additional Information Regarding 2021 Cyberattack Investigation
Lawsuits filed nationwide were consolidated into In re: T-Mobile Customer Data Security Breach Litigation, MDL No. 3019, in the U.S. District Court for the Western District of Missouri.3TZ Legal. $350 Million Settlement in T-Mobile Customer Data Security Litigation In July 2022, T-Mobile agreed to a $350 million settlement fund plus a separate $150 million investment in security improvements. Final approval came on June 29, 2023.4Keller Rohrback. T-Mobile 2021 Data Breach
What Class Members Received
The settlement covered roughly 76 million U.S. residents T-Mobile identified as affected. The claim deadline was January 23, 2023, so new claims are no longer accepted. Approved claimants could receive:5T-Mobile Settlement. FAQs
- Reimbursement of documented out-of-pocket losses tied to the breach, up to $25,000, with receipts, invoices, bank statements, or similar records.
- A flat cash payment of $25, or $100 for California residents on August 1, 2021, subject to pro rata adjustment based on total claims.
- Two years of identity monitoring through Pango, plus fraud resolution services that remain available to all class members through January 20, 2028.
Named plaintiffs received $2,500 service awards.
Where Payments Stand Now
Distribution of settlement payments began in May 2025 and finished by May 30, 2025.6T-Mobile Settlement. T-Mobile Data Breach Settlement In November 2025, the settlement administrator sent follow-up emails to claimants whose electronic payments had failed. Claimants who filed a valid claim but never received payment had until March 31, 2026, to contact the administrator at 1-833-512-2314 to request a reissue. Identity defense monitoring and fraud resolution services remain available through January 20, 2028.5T-Mobile Settlement. FAQs
The Attorneys’ Fee Fight
The district court initially approved $78.75 million in legal fees, or 22.5% of the fund. On July 29, 2024, the Eighth Circuit vacated that award, calling it a “windfall” for class counsel. Applying a lodestar crosscheck, the appeals court found the fees translated to effective hourly rates of $7,000 to $9,500, a multiplier of 9.6 over the actual hours worked. The court noted counsel had been on the case only months, ran limited discovery, and filed no substantial motions.7FindLaw. In re T-Mobile Customer Data Security Breach Litigation On remand, class counsel requested $46 million (about 13% of the fund), which the district court granted in January 2025.8Reuters. T-Mobile Class Action Plaintiffs Slash Legal Fee Bid to $46 Million
The Price Lock Class Action
The second major case targets T-Mobile’s rate increases on legacy plans that were marketed with promises like “T-Mobile will never change the price you pay for your T-Mobile ONE plan.”9Ars Technica. Users Say T-Mobile Must Pay for Killing Lifetime Price Lock In February 2019, as a condition of the Sprint merger, then-CEO John Legere also pledged to the FCC that the combined company would offer “the same or better rate plans” for at least three years.10USA Today. T-Mobile Vows Not to Raise Rates 3 Years if Sprint Merger Approved
The fine print of the “Un-contract” and later “Price Lock” policies never actually froze prices. It offered to reimburse a customer’s final month of recurring charges if T-Mobile raised prices and the customer left within 60 days. In April 2025, T-Mobile replaced Price Lock with a “5-Year Price Guarantee” that locks the rate for five years from account activation.11T-Mobile. Price Lock FAQs
In May 2024, T-Mobile announced a $5-per-line monthly increase on certain legacy plans (and $2 per line for connected devices like tablets and watches), effective June 2024.12FCC Complaints. T-Mobile Complaints to FCC A second $5-per-line increase followed in April 2025.13ClassAction.org. T-Mobile Price Lock Increase The FCC received more than 2,000 complaints about the change.9Ars Technica. Users Say T-Mobile Must Pay for Killing Lifetime Price Lock
On July 12, 2024, four plaintiffs filed Oddo, et al. v. T-Mobile USA Inc. (Case No. 2:24-cv-07719) in the U.S. District Court for the District of New Jersey. The complaint alleges fraud, false advertising, negligent misrepresentation, and violations of consumer protection statutes in New Jersey, Georgia, Nevada, and Pennsylvania.14Fierce Network. T-Mobile Customers Sue Over Lifetime Price Promises The suit targets rate hikes on T-Mobile ONE, Simple-Choice, Magenta, Magenta Max, Magenta 55+, Magenta Amplified, and Magenta Military plans.15Top Class Actions. T-Mobile Class Action Alleges Company Raised Prices After Promising Not To
Named plaintiff Christopher Oddo said his plan rose $5 per line, a $15 monthly total. Another plaintiff, Harry Hyaduck Jr., reported his Magenta 1.0 Military Plan jumped from $100 to $120 per month.16Scripps News. T-Mobile Slapped With Class Action Suit for Raising Prices on Guaranteed Plans T-Mobile has moved to compel the lead plaintiff into arbitration and dismiss certain out-of-state claims.9Ars Technica. Users Say T-Mobile Must Pay for Killing Lifetime Price Lock The case remains active with no settlement or final ruling.13ClassAction.org. T-Mobile Price Lock Increase
Why Most Customers Can’t Just Join the Case
T-Mobile’s terms of service include a mandatory arbitration clause and a class action waiver. Most customers therefore cannot join Oddo as class members. The plaintiffs in the New Jersey suit reportedly opted out of the arbitration clause, which is why they were able to sue in court. Attorneys are pursuing mass arbitration on behalf of other customers hit by the 2024 and 2025 increases, filing large numbers of individual arbitration demands at once.13ClassAction.org. T-Mobile Price Lock Increase
The Hidden Fee Lawsuit
In October 2024, 23 plaintiffs filed Beets et al. v. T-Mobile USA Inc. (Case No. 2:24-cv-09344) in the U.S. District Court for the Central District of California. The complaint challenges the monthly Regulatory Programs and Telco Recovery Fee — $3.49 per line — charged to postpaid wireless customers. The plaintiffs allege the fee is presented as though it were a government-mandated charge when it is actually a T-Mobile surcharge, in violation of federal truth-in-billing rules and various state consumer laws. According to the complaint, the plaintiffs first sought individual arbitration through the American Arbitration Association in 2023, but T-Mobile refused to participate, causing those cases to be closed.17Top Class Actions. T-Mobile Class Action Alleges Telecom Provider Charges Hidden Fees
Regulatory Actions Running Alongside
The private class actions are not the only legal pressure on T-Mobile. In September 2024, the company reached a $31.5 million settlement with the FCC resolving investigations into data breaches in 2021, 2022, and 2023. Half was a civil penalty; the other half must be spent over two years on cybersecurity upgrades, including a move to zero-trust architecture, phishing-resistant multifactor authentication, data minimization, and third-party security assessments.18Cybersecurity Dive. FCC Settlement T-Mobile Data Breaches19FCC. T-Mobile Consent Decree DA-24-860
Further back, in December 2014, T-Mobile agreed to pay at least $90 million to settle FTC accusations of “mobile cramming,” letting unauthorized third-party charges appear on customer bills. It also paid $18 million to state attorneys general and $4.5 million to the FCC. By February 2017, the FTC had issued nearly $20 million in refunds to more than 617,000 customers, averaging about $32 per check.20FTC. T-Mobile to Pay at Least $90 Million to Settle FTC Mobile Cramming Case21Top Class Actions. FTC Issues Refunds to T-Mobile Customers for Text Message Cramming That refund program is closed.