But the watchdog says that dynamic pricing is becoming ‘increasingly prevalent’ in live music and sporting events, and may breach consumer protection regulations in ‘certain circumstances’.

The CMA may also examine whether the practice breaches competition law – as the majority of tickets for the gigs were sold through Ticketmaster alone.

The call for evidence closes in two weeks, on September 19 at 5pm.

CMA chief executive Sarah Cardell said: ‘It’s important that fans are treated fairly when they buy tickets, which is why we’ve launched this investigation.

‘It’s clear that many people felt they had a bad experience and were surprised by the price of their tickets at checkout.

‘We want to hear from fans who went through the process and may have encountered issues so that we can investigate whether existing consumer protection law has been breached.

‘The CMA also welcomes the Government’s recent announcement that it will consult on measures to provide stronger protections to consumers in the ticketing sector, wherever they buy their tickets.

‘This has been a priority focus for the CMA for several years, having previously taken enforcement action and recommended changes to improve the secondary tickets market.

‘We are committed to working closely with Government to tackle the longstanding challenges in the ticket market.’

Representatives for Ticketmaster and Oasis have been contacted for comment.

Oasis has already sought to distance themselves from the dynamic pricing row – claiming they were ‘not aware’ the controversial price-setting scheme would be used to punt tickets to their reunion tour.

In an unprecedented statement, a representative of the band said yesterday: ‘As for the well reported complaints many buyers had over the operation of dynamic ticketing: it needs to be made clear that Oasis leave decisions on ticketing and pricing entirely to their promoters and management, and at no time had any awareness that dynamic pricing was going to be used.

‘While prior meetings between promoters, Ticketmaster and the band’s management resulted in a positive ticket sale strategy, which would be a fair experience for fans, including dynamic ticketing to help keep general ticket prices down as well as reduce touting, the execution of the plan failed to meet expectations.

‘All parties involved did their utmost to deliver the best possible fan experience, but due to the unprecedented demand this became impossible to achieve.’

This is a breaking story, more to follow.

Could dynamic ticket pricing fiasco spark yet another Oasis feud? Fears row could drive wedge between Gallagher brothers as Liam faces bulk of backlash

Oasis fans are facing new anxiety over whether the truce between Liam and Noel Gallagher will hold for next year’s reunion gigs after a ticketing debacle backlash.

Sources have reportedly suggested younger sibling Liam is suffering more backlash after many wannabe buyers either failed to secure tickets amid 11-hour queues last Saturday or were faced with ‘dynamic pricing’ doubling of fees.

Oasis last night announced two extra dates after what they called ‘unprecedented demand’.

Oasis said the approach was chosen during meetings between Ticketmaster, promoters and their management.

This meme was widely shared during fans’ frustrating attempts to buy tickets last Saturday

Feuding Gallagher brothers Liam (left) and Noel (right) are seen here in Oasis’s 1997 heyday

Liam and Noel Gallagher confirmed on Tuesday last week that Oasis were reuniting

An estimated 14million people attempted to buy tickets when they went on sale last SaturdayRock ‘N’ Roll Stars! Oasis CONFIRM long-awaited reunion tour.

A meme widely shared during fans’ attempts to buy tickets last Saturday had a mock-up image of the Ticketmaster website saying: ‘Unfortunately, Oasis have split up while you were in the queue.’

Both brothers have accounts on X, formerly Twitter, although Liam – who has 3.8million followers to Noel’s 1.4million – has tended to be more prolific in responding to people online.

Ahead of the confirmation of the comeback last week, he hit back at critics who claimed they were only getting back together because they were broke by posting: ‘Your attitude stinks.’

Yet his last contribution on the social media site came last Thursday, sharing details of three gigs next year at Heaton Park in Manchester on July 16, Wembley Stadium in London on July 30 and Edinburgh’s Murrayfield Stadium on August 12.

The Sun has now quoted a source close to the band as saying: ‘Liam is getting the brunt of the backlash and is being called out by fans.

‘Noel and Liam have discussed what’s happened and have asked their teams to see if they can change the Ticketmaster policy. They want to look after their fans and get as many to their concerts as they can, for the price they marketed the tickets at.’

Liam suffered particular criticism last week when an old tweet of his mocking Noel for solo gig prices resurfaced and was widely shared online.

nger brother had slammed Noel in for charging $350 (£266) for a gig in the US, writing in September 2017: ‘350 dollars to go and see rkid in USA what a c*** when will it all stop as you were LG x.’

The post was shared with comments such as ‘This hasn’t aged well’ and ‘Well this is evergreen’.

And a new backlash targeting Liam from fans online has included one poster writing: ‘Gone very quiet @liamgallagher since the dynamic pricing stuff.’

Another directly asked him: ‘Was it Ticketmaster or the band who agreed to dynamic pricing? Hope it wasn’t you guys.’

Bookies have now put the odds of the new tour being cancelled in advance at just 3-1, albeit 1-2 to go ahead – while saying it was evens to be scrapped after the first gig.

Colm Phelan, from Casinos.com, said: ‘We know just exactly how turbulent Noel and Liam’s relationship is and it probably wouldn’t take much to reignite the spat between them.