Friends who have been there, how did you buy the oyster card, did you buy it on site or on Taobao? Some guides say that the 5-pound card fee can be refunded, but I saw on Taobao that some say it cannot be refunded. Are there two types of cards? One for tourists and one for locals ?

It's very convenient to buy them out of the airport. You don't need to buy them on Taobao.

Buy it on the spot, extremely simple. Bring your chip credit card, preferably Visa. My companion's Mastercard didn't work.

The refundable one is the ordinary card used by locals, which is very convenient. You can buy it at any subway station. The non-refundable one is the tourist card. Although it is called a card, it is given to you as a souvenir. The deposit is not refundable, but in fact, after the refund of the ordinary card, the card is also left for you, so there is no need to buy a tourist card. But remember to return it at the last subway station. After taking the airport express, you cannot find a place to return it. The airport express can buy advance special tickets on the official website.

Can be refunded on the machine if there is a balance of less than 5 pounds after purchase at the airport. It is very convenient. You can take the slow line at the airport, do not take the fast line.

You can't get your deposit back if you buy it on Taobao, but you can if you buy it on site.

You can buy it on the spot. It's very convenient to buy it with a credit card at the automatic vending machine.

Just buy it at any subway station, it's very convenient. Return according to the payment method when returning.