1. Wing Phone itself has many accounts, such as phone bill (communication fee) and restaurant consumption (meal card fee). If the account charged is wrong, it cannot be used;
2. Poor contact or hardware damage: it can't be sensed when swiping the card (after-sales point maintenance);
3. The prompt "password error, card abnormal" during consumption is due to system or software reasons: you can modify the payment password online or return the card at the after-sales service point;