The sale of Olympic tickets hit a glitch today, only hours after sales began. The problem is with Visa cards which expire before the end of August – they are unable to be processed by the tickets site.

Visa is the only way to pay online for an Olympic tickets, but, today, fans whose cards expire after August found that their payments were not accepted.

A London 2012 spokesman said that the problem was with Visa rather than the Olympic tickets site.

Tickets for London 2012 on sale

How to buy tickets for LONDON 2012

“It is being sorted. It is an issue with Visa rather than the website or our systems,” the Olympics spokesperson said.

“What Visa is trying to do is to ensure that more people will be able to apply by bringing this threshold forward so that it will only be if your card expires before the end of June that the site will not process your order.

“It means if your card runs out in July you will still be able to apply, but you will just need to come into the process a bit later.”

According to London 2012, the website clearly states that if a Visa card expires before the end of August 2011 the system won’t take the application.

There is a six-week period to apply for Olympics 2012 tickets – ending April 26 at 11.59pm. 6.6 million tickets are available.

There has been a steady stream of application since tickets went on sale at midnight, he added.

London 2012 is urging people not to rush to make their online application as it is not a first-come, first-served system.

eBay is cracking down on anyone trying to resell tickets.

Get your London 2012 tickets here: