Thirteen customers were caught up in the same software glitch that wrongly denied one woman a £1m jackpot, a High Court case revealed. Now they could have just weeks to come forward.
Time is running out for 13 mystery Paddy Power customers caught up in a software glitch that wrongly denied one woman a £1.1million jackpot and they may not even know they were affected.

The customers were identified during the High Court case brought by Corrine Durber, after she was shown a £1,097,132.71 Monster Jackpot while playing Paddy Power’s Wild Hatter game in October 2020.

Corrine, a 54-year-old gardener from Gloucestershire, was paid just £20,265.14, the Daily Jackpot, after Paddy Power told her that a computer error had caused the wrong prize to appear on her screen.

She refused to accept the explanation and spent five years fighting for the jackpot she believed she had won.

In March 2025, Mr Justice Ritchie ruled in Corrine’s favour, finding that she was entitled to the Monster Jackpot displayed to her.

Her award, together with interest, ultimately took the value of her victory to more than £1.5million.

But her legal battle uncovered an extraordinary revelation.

Corrine was not the only customer affected.

Evidence presented to the High Court revealed that 13 other customers had also been affected by the software problem and had apparently received smaller Daily Jackpot prizes.

In his judgment, Mr Justice Ritchie found that the jackpot displayed to Corrinne was the amount she was entitled to receive, applying the principle he described as “What You See Is What You Get” – WYSIWYG.

Paddy Power was ordered to pay the difference, with interest subsequently taking the value of Corrine’s victory above £1.5million.

During the case, evidence was given by Ashley Padgett, UK Director of Compliance for Paddy Power’s parent company, Flutter Entertainment.
A report about the IT problem had been made to the Gambling Commission on October 23, 2020, just days after Corrinne’s disputed win.

The evidence revealed that the problem had affected other customers.

Thirteen other Monster Jackpot winners had apparently received the smaller Daily Jackpot.

Four Betfair customers were also identified as having accepted smaller prizes than they may have been entitled to.

The evidence also indicated that the issue was not limited to Wild Hatter, with nine other games identified as potentially affected.

The identities of the 13 other customers have not been publicly revealed.It is therefore unclear what happened to each of them.

Were they contacted?

Were they told their games had been affected?

Were they offered additional payments?

And did they know that the amount displayed to them may have differed from the amount they were legally entitled to receive?

Those questions were not fully answered by Corrine’s case.

For some of the customers, the incident happened almost six years ago. They may have long forgotten about the game they played in 2020.

They may have accepted the prize they were paid and assumed that was the end of the matter.

But Corrine’s successful legal battle has raised questions about whether some of those players should now revisit what happened.

Could there be even more?
The High Court case also raised another extraordinary possibility.

What if the software error worked in reverse?

Corrine was shown the Monster Jackpot when the system recorded the Daily Jackpot.

But could another player have actually been entitled to a Monster Jackpot while their screen showed the smaller Daily Jackpot?

If so, they could have accepted the smaller amount without ever realising that anything had gone wrong.

Mr Justice Ritchie raised the possibility of such “vice versa” errors, although the court was not provided with evidence establishing whether they had occurred.

The September deadline

The games in question were played in 2020 and potential legal claims are subject to limitation periods.

With September 2026 approaching, anyone who believes they may have been affected should act urgently and obtain independent legal advice about their individual circumstances.

The High Court case does not establish that every one of the 13 customers is automatically owed £1million, or that they remain unpaid.

But Corrine’s case demonstrates just how significant the sums involved could be.

She was paid £20,265.14 after being shown £1,097,132.71.

She ultimately won her fight for the larger jackpot.

Now the question is: what happened to the other 13?

If you played Paddy Power’s Wild Hatter game between September 1 and October 18, 2020, or believe you may have been affected by the software problem, you could be one of the Missing 13.

You may also have information about someone who could be affected.

Visit https://www.themissing13.com to find out more and get in touch.