William Hill: customer lost £285k after glitch

In the UK, a 76-year-old customer of iGaming operator William Hill (Evoke), John Riding, suffered a heart attack ten days after a glitch in the Jackpot Drop mechanic credited £285,700 (~$378,000) to his account.
Jackpot Drop glitch and £285k win
The incident occurred during an online casino session, where the user was shown a large win.
How the win was recorded
According to John Riding, the amount of £285,700 appeared in his account after a gameplay session.
At a retail William Hill shop, staff confirmed the presence of the winnings on his account.
Disappearance of funds from the account
According to reports by The Mirror, the funds disappeared within a day without explanation.
Attempts to access the account
The user tried to withdraw the funds and contact support, but access to the account was restricted.
The interface showed a “manual adjustments” note, and only £15.40 (~$20) was returned to the account.
Cause of the glitch and William Hill’s position
The company confirmed an issue with the Jackpot Drop mechanic.
Operator’s comment
William Hill stated that the error led to incorrect credits being applied to customer accounts.
The operator has begun the process of reclaiming the incorrectly credited funds in line with its terms and conditions.
Impact on the customer
Ten days after the incident, John Riding was hospitalized with a heart attack.
Stress factor
According to his family, the condition was triggered by stress following the disappearance of the funds and lack of clear communication.
Other affected customers
The situation affected more than one user.
Group claims
Around 50 customers have contacted law firm Ellis Jones Solicitors regarding similar issues.
The firm is considering a potential group legal action.