Oasis have issued a warning against reselling tickets to their comeback tour, after some were listed for thousands of pounds within minutes of a pre-sale.

A limited number of fans were able to buy the first batch of tickets during a three-hour window on Friday evening.

Shortly after, tickets were being listed online for more than £6,000 – over 40 times the face value of a standing ticket.

Oasis urged people not to resell tickets at inflated prices on websites not linked to their promoter, and said they would be “cancelled”.

Consumer law expert Lisa Webb from Which? told BBC News some re-sale listings “could be scam attempts” and even “legitimate” re-sale tickets could become “invalid”.

She said she would “strongly advise” against purchasing resale tickets at above face value, and warned buyers may not get their money back if gigs are cancelled.

Soon after Friday’s pre-sale began, ticket listings appeared on resale websites like StubHub and Viagogo, including:

• £6,000 for Oasis’s first show at Wembley Stadium in London on 26 July
• Between £916 and £4,519 for the first concert of the tour at Cardiff’s Principality Stadium on 4 July
• Over £4,000 for standing tickets at Edinburgh’s Murrayfield Stadium on 12 August
• More than £2,500 for the band’s homecoming concern at Manchester’s Heaton Park on 12 July

Ahead of the pre-sale, promoters said standing tickets will cost about £150, while standard seated tickets range from £73 to about £205. Prices for official premium packages go up to £506.

About 1.4 million tickets are expected to be available for the 17 outdoor concerts in the UK and Ireland next July and August.

Oasis intervened on Friday evening while the pre-sale was still ongoing, issuing a statement which read: “We have noticed people attempting to sell tickets on the secondary market since the start of the pre-sale.

“Please note, tickets can ONLY be resold, at face value, via Ticketmaster and Twickets.

“Tickets sold in breach of the terms and conditions will be cancelled by the promoters.”

Oasis’s promoters had issued a similar warning prior to the pre-sale, saying tickets sold through “unauthorised resale platforms” will breach terms and conditions and “may be cancelled”.

Viagogo and StubHub have been contacted for comment.

On Thursday, Oasis’s promoters said there had been “unprecedented demand” for the ballot to enter the pre-sale, and added three extra dates to the 14 that were initially announced.

Hundreds of people who managed to secure a ticket ahead of Saturday’s general sale celebrated on social media.

“I’m actually going to see my favourite band of all time! Didn’t think I’d ever see this,” wrote one user.

Another said: “I have 2 very excited daughters. Almost got deafened by the screaming when the purchase was verified.”

One said he had secured tickets to the opening night of the tour and joked: “They should still be together then”.

The general sale begins at 09:00 BST on Saturday for UK shows, while Dublin tickets will be available an hour earlier.

As anticipation for the gigs builds, sales and streams of the band’s back catalogue have surged, with three albums going back into the UK top five chart on Friday.

Greatest hits collection Time Flies is at number three, 1995’s What’s The Story Morning Glory is at four, and debut Definitely Maybe – released on 29 August 1994 – is in fifth place.

A 30th anniversary edition of Definitely Maybe was released on Friday.

Oasis were formed in Manchester in 1991 – their original line-up comprised of Liam and Noel, guitarist Paul “Bonehead” Arthurs, bassist Paul “Guigsy” McGuigan and drummer Tony McCarroll.

The band officially split in 2009 after an altercation backstage at the Rock en Seine festival in Paris.

Additional reporting by Helen Bushby and Ian Youngs