The definitive guide to Oyster

Richard Hibbert, of The Forest Hill Society has produced this users' guide to Oyster. Most crucially, given the overcharging that many experienced when it was first introduced at the beginning of the year, the appeals process is as follows:

If you feel that you have been overcharged, you should allow 48 hours before calling the Oyster helpline on 0845 330 9876 between 8am and 8pm. It is also possible to call TfL during office hours on 020 7222 5600 (ask for Oystercard Ticketing & Refunds) to avoid these charges if your calling plan includes geographic numbers.