Lottery players from across the United Kingdom have taken to social media this week to express their anger at a coming 25% price increase for tickets into the bi-weekly EuroMillions lottery draws.

According to a report from the London Evening Standard newspaper, the cost for each EuroMillions entry is set to rise on September 24 from £2.00 ($2.66) to £2.50 ($3.33), which has prompted players to label operator Camelot Group as “greedy” and its games a “total rip off”.

Punters have also been left seething that Camelot Group is altering the way the games are played. Under a new system due to start at the same time, players will be required to select “lucky star” numbers out of twelve rather than the previous eleven, which will see the chances of winning grow from one in 117 million to one in 140 million.

However, Camelot Group has defended the changes as a way to “re-energize the game and take it to the next level” and claimed that the number of UK Millionaire Maker jackpots could now swell to at least two every week while potentially doubling the number of guaranteed British winners to 208 per year.

“It’s now time to re-energise the game and take it to the next level [and] these fantastic enhancements will do just that, helping us to deliver even more for our players and UK good causes in the years to come,” read a statement from Sally Cowdry, Consumer And Retail Director for Camelot Group.

Camelot Group additionally declared that the alterations, which have been made in conjunction with the ten syndicated operators of the Europe-wide lottery, will see it able to guarantee £109.43 million ($144.44 million) in jackpots with higher individual starting prizes at £14 million ($18.6 million) and more than twice as many jackpots a year worth in excess of £50 million ($66.6 million).

“EuroMillions has always captured the UK public’s imagination with its exhilarating jackpots and numerous multi-million pound winners; boosting returns to good causes in the process,” read the statement from Cowdry.”