2. This kind of finished card is different from opening a card independently in the business hall. Cards opened in the business hall generally require you to provide identity information and set the service password. The relevant information in this card may have been uniformly set as unfamiliar information, or the identity information is a big customer, that is, empty information. The service password is usually written on the package of the card or told orally by the seller. In other respects, the use of the card is no different from the card opened in the business hall. The only thing I can think of is that I can't provide identity information when I accidentally lose my card and need to replace it, which is very difficult.