CalderWren The First Law Firm to Take Legal Action Against Changelly

In a critical turning point for crypto investor protection, Calder & Wren LLP, a boutique law firm specializing in blockchain litigation, has become the first legal team to initiate formal legal proceedings against Changelly, following an unresolved case involving $1 million in USDT.

The case highlights serious gaps in exchange accountability and how legal action, when handled strategically, can deliver swift and decisive results.

The Incident: $1,000,000 USDT Sent, Then Frozen for Over Six Months

In late 2024, a client initiated a large-scale swap via Changelly, converting $1M USDT (ERC-20) into native BTC .

The transaction was executed correctly, with verifiable blockchain confirmation and matching wallet addresses.

But the funds were never delivered.

Over the course of six months, the victim made repeated efforts to resolve the issue:

Over a period of more than six months, the client made every reasonable effort to resolve the issue directly with Changelly. They submitted multiple support tickets through the official platform, each accompanied by detailed explanations of the problem.

To further demonstrate the legitimacy of the transaction, the client provided full KYC documentation and evidence of the lawful origin of the funds. They also submitted signed declarations confirming ownership of the involved wallets, as well as complete on-chain transaction logs.

In a final effort to gain visibility, the client attempted to escalate the matter publicly by posting in the official Changelly subreddit, contacting the company via Twitter, and even reaching out through third-party industry contacts.

Despite these persistent efforts, no meaningful response was ever received. The case was repeatedly met with silence, automated replies, or ticket closures without explanation.

Legal Action Begins: Calder & Wren Steps In

After months of inaction from Changelly, the client turned to Calder & Wren’s Digital Asset Legal Division. The firm promptly initiated a two-pronged approach: a forensic audit and jurisdictional investigation.

First, the legal team conducted a comprehensive technical review, analyzing transaction data on Etherscan and BTC explorer, verifying wallet metadata, and compiling the full communication history with Changelly.

Simultaneously, Calder & Wren launched a legal inquiry to uncover the platform’s true operating structure. Though Changelly presented itself as decentralized and routed activity through offshore entities, the firm was able to:

Uncover its effective legal presence in Europe and USA.

Link the platform to known founders and affiliated companies

Gather sufficient evidence to file a formal legal notice and case brief with the relevant court

This dual strategy proved crucial in forcing a response from the platform and securing a resolution

Resolution

Within 72 hours of receiving the court-stamped legal threat, Changelly issued a full refund of the $1M USDT to the original wallet.

The platform acknowledged the dispute, without admitting liability, and closed the case with a formal statement to the client's legal team.

Statement from Calder & Wren

This case marks an important success not only for our client, but also for legal accountability in the digital asset space. It highlights how blockchain transparency, when paired with well-structured legal action, can effectively challenge platforms that operate in legal grey areas.

The result was made possible through coordinated efforts across multiple actors, including regulatory counsel, the jurisdictional court, and even the underlying exchange where Changelly held the frozen funds. It’s a clear demonstration that, despite the opacity of certain crypto services, collaboration and legal precision can deliver results.

Beverly Carter , Partner – Head of Digital Asset Practice, Calder & Wren LLP