Official website, Bank of China, said that relatives whose bank cards have been swallowed can carry their ID card, cardholder's ID card, proof of relationship with the cardholder and cardholder's authorization. So relatives can collect the swallowed bank card on their behalf.

When using an ATM, you should follow the machine interface prompts for related business operations. If you don't take the card within 30 seconds after returning it, you will be swallowed; After returning the card, if you want to handle the self-service business, you should first take out the card and then follow the normal steps. If you push the card directly, it will be swallowed.