Beware of the so-called so-and-so guarantee company handling credit cards. Usually, the so-called guarantee companies handle fake cards with high imitation. When the card is inserted into an automatic ATM machine, the amount can be found out, but it is impossible to withdraw money or spend it with a POS machine. Finally, the other party asks you for money on a series of excuses, such as deposit, deposit, prepaid interest and so on.