London mass transit is rather convenient. The Oyster card works well if not lost. Two Giant cards were misplaced indefinitely and needed to be replaced. At final departure from the city of London, learn from the Giants and plan time to get a refund if cash was used to buy the cards. Story is that a refund of the 5 pound deposit per card and remaining value can be done online or by phone (Giants believe this is a myth since efforts have been fruitless so far). The machine in the underground stop provide refunds 5 out of 6 times given today’s test.
Plan for refund machines to be out of order – many were creating a queue at each working one. The train to Dover was boarded on time, almost that was not true.