New research supported by the University of Portsmouth reveals the severe impact of fraud
21 May 2026
5 minutes
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Online returns abuse driven by young offenders and organised ‘refund‑as‑a‑service’ economy
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Criminals see themselves as “untouchable” online
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Urgent call for industry‑wide data and intelligence‑sharing retail database
Refund fraud could be costing UK online retailers up to £5.76 billion a year, according to new research from universities worldwide, including the University of Portsmouth, funded by the UK’s leading fraud prevention service, Cifas.
The Mapping the Online Economy of Refund Fraud report launched today (21 May). It analyses nearly 500,000 posts across cybercrime forums, Telegram, Nulled and Cracked. Fraudsters have been using these channels to openly share techniques, target retailers and sell fraudulent refunds as a paid service. Some ‘refund‑as‑a‑service’ vendors were even taking up to 30 per cent of the refund value for a guaranteed outcome.
Most offenders were young males between 14-30-years-old, with an average age of 19. Many were students or unemployed with refund fraud frequently linked to other criminal activity including card fraud, identity fraud, and money laundering.
Some users also showed risky behaviours while online - sharing receipts and personal details about themselves such as their names and where they lived, often with the belief they were “untouchable” and that retailers and law enforcement would not catch them.
The most common refund fraud methods, according to the research, include:
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Claiming items did not arrive
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Reporting partial or empty boxes
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Using fake tracking IDs to simulate returns
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Returning substitute or counterfeit goods
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Wardrobing - where items are worn and returned
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Abusing food delivery refunds
Researchers warn in the report that refund fraud will continue to grow without targeted public awareness - particularly aimed at young people - and stronger collaboration between retailers, law enforcement and the fraud prevention community. There is also an urgent call for an industry-wide database, like Cifas’ National Fraud Database, that enables retailers to track known offenders and share intelligence more effectively.
Professor Mark Button, Co-Director of the Centre for Cybercrime and Economic Crime at the University of Portsmouth and one of the report’s contributors, said: “Criminals have professionalised refund fraud and are exploiting the opportunity‑rich environment that online retail presents. Weak systems and a perception they are ‘untouchable’ have allowed this issue to scale rapidly.”
Mike Haley, CEO of Cifas, added: “Refund fraud is not harmless - it is organised, widespread and costing UK retailers billions. Those losses hit honest customers through higher prices and stricter returns. This research makes clear that we need better data and intelligence‑sharing, stronger deterrence, and far greater education to challenge the belief that this behaviour is acceptable.”
The report builds on the work of the Centre for Cybercrime and Economic Crime at the University of Portsmouth, which aims to bring together, coordinate and expand expertise in cybercrime and economic crime.
As one of the largest groups of active researchers in these fields in the UK, the members are at the forefront of advancing understanding of the challenges posed by cybercrime and economic crime. Their work helps develop solutions that address these risks and strengthen societal and organisational security and resilience.
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