I can't get bank messages on my old mobile phone. What's wrong?

The mobile phone card has poor contact and can't receive the signal.

If the mobile phone does not receive official short messages from operators, banks, group purchases, etc. It may be caused by poor contact with the mobile phone card. At this time, you can turn off your mobile phone, take out your mobile phone card and try to reinsert it. If you can't receive the SMS with verification code, it may be caused by network reasons. At this point, you can receive a verification code again.

If you can't receive a private message, it may be that this mobile phone has blacklisted the other party's mobile phone number. At this time, the message sent by the other party's mobile phone number will be automatically intercepted and cannot be received. It should be noted that the mobile phone card generally needs to be replaced with a new card after three years of use, otherwise it may be used for too long, resulting in the aging of the mobile phone card and poor signal. You can also change your mobile phone and see if you can receive the text message. If you can accept SMS, there is something wrong with your mobile phone, so you need to repair it or change it.