The UK's competition regulator has launched an investigation into Ticketmaster after the site used so-called "dynamic pricing" to sell tickets for the much anticipated Oasis reunion tour.
The Competition and Markets Authority is looking into whether the company used "unfair commercial practices" which may have broken the law.
The watchdog is also investigating whether the pressure to buy tickets quickly may have influenced consumers' purchasing decisions and you can have your say.
While there is no law against "dynamic pricing" in the UK or Jersey, the CMA says the practice may breach competition laws under certain circumstances.
Anyone who has bought Oasis tickets is invited to provide evidence as part of the CMA's review.
You can take part by visiting the CMA website.
Sarah Cardell, Chief Executive of the CMA, 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 check-out. 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 Jersey Consumer Council, encourages Islanders who bought Oasis tickets to give evidence to the CMA's investigation to make your voice heard and to help make changes in the future.