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"... Behind the scenes at Transport for London, work has been going on to reduce the number of incomplete Oyster journeys, and that indicates they do acknowledge it is an issue.
This is what they have said in a frank response to a Freedom of Information request from the Liberal Democrats on the London Assembly:
"We recognise that more can be done, and are working to further improve Oyster and the service provided to customers, including improved journey history information, and work on a technological solution which we hope to introduce later this year, to tackle the issue of incomplete journeys."