Nine investors who complained to Action Fraud, the UK's national reporting centre for fraud and cybercrime, paid Key Coin Assets Ltd a combined of more than £300,000 after being promised guaranteed cryptocurrency returns of up to 100%, according to an investigation by the UK Insolvency Service. The investigation found no evidence that the company ever carried out genuine trading, and concluded that money from new investors appeared to have been used to pay earlier ones.

Key Coin Assets Ltd was wound up at the High Court in London on Tuesday 11 August, and the Official Receiver was appointed as liquidator. A winding-up order places a company into compulsory liquidation, in which the Official Receiver is responsible for investigating the company's affairs and dealing with its assets. The Insolvency Service set out its findings in an official announcement.

Guaranteed Returns, No Genuine Trading

The company told investors it could guarantee returns ranging from 40% to 100%. An online post promoting the scheme went further, claiming "0 Fees, 0 Risks".

Mark George, Chief Investigator at the Insolvency Service, said the firm promised guaranteed returns but delivered nothing, and described its conduct as displaying the hallmarks of a Ponzi-style scheme. Schemes of this kind typically use money from new participants to pay earlier ones, and collapse once fresh deposits dry up.

"Investors were told their money was being invested in crypto, but our investigation found no evidence of any genuine trading at all," George said.

According to George, funds were moved into the director's personal account, often within hours of arriving. Bank records examined by investigators showed that transfers frequently took place on the same day funds were received, after which the money became difficult to trace.

The investigation found that money from new investors appeared to have been used to pay earlier investors. No criminal conviction has been reported in connection with the case, and no court finding of fraud has been identified.

Warning Signs Beyond the Promised Returns

Following the winding-up, the Insolvency Service and the Financial Conduct Authority (FCA) urged people to be cautious about similar offers. George advised prospective investors to check whether a firm is registered and to be sceptical of anyone promising high returns with no risk.

The agencies highlighted further warning signs uncovered during the investigation. The company allegedly posted fake customer testimonials online without permission and instructed investors to avoid using terms such as "crypto" or "investment" in bank payment references.

Accounting records were not handed over when the Insolvency Service requested them. The company also repeatedly changed its official registered address; at one point it listed a flat whose occupants said they had never heard of the business.

Companies House filings claimed assets of up to £42 million — a figure far higher than the company's actual banking activity suggested. It was not indicated that this claimed amount represented money available to repay investors.

What the Case Means for Crypto Investors

The Insolvency Service and the FCA advised anyone considering a crypto investment to check whether the firm is registered. The FCA's Firm Checker shows whether a firm is registered and has been through certain FCA checks, and the regulator also publishes a list of unauthorised firms.

The FCA currently regulates cryptoassets only for anti-money laundering purposes and in relation to financial promotions. Most other cryptoasset activities are not currently regulated in the UK, and cryptoasset activities will fall under regulation from 25 October 2027.

The Official Receiver now serves as liquidator of Key Coin Assets Ltd. The Insolvency Service urges anyone weighing a similar offer to verify a firm's registration before handing over money, and to question any claim of guaranteed returns without risk.