Blame Games: Olympic organisers have been accused of secrecy. Picture by John Hercock

Olympic Games organisers have been asked to make assurances that there will not be repeat of the fiasco which dogged its online ticket resale process earlier this year.

Customers logging on to Locog’s website hoping to sell on their unwanted tickets in January were unable to do so after it was suspended on the day of launch for technical reasons.

The site was re-opened two weeks later after Locog changed the resale process to buy tickets directly. They will be sold onto the public in April.

This came after it emerged 10,000 tickets for the synchronised swimming events were oversold.

The London Assembly has now asked Locog to explain what testing was carried out on the re-sale system, which was run by Ticketmaster, and what lessons have been learnt.

It’s report Sold Out, compiled over two years, also draws attention to the secrecy surrounding Locog’s ticketing arrangements.

The company, not subject to Freedom of Information laws, will not provide a detailed breakdown of how many tickets have been sold at what price for each event.

Dee Doocey AM, from the London Assembly, said: “It is completely unacceptable that an organisation that only exists because of a huge investment of public money can hide behind its status as a private company to avoid questions it does not like.

“Locog is putting public confidence at risk by refusing to provide a complete breakdown of how many tickets were available for each event.”

Those who missed out on Olympic tickets at the last sale will receive first refusal when the next batch - amounting to 1.3 million - is made available.