E-Union Bank cannot be redeemed.

You mean why E-Union Bank can't redeem it? The reason why E-Union Bank can't redeem is that the mobile phone is bound incorrectly. E-Union Bank cannot exchange mobile phone verification code. If you change the mobile phone number, it will lead to the mobile phone number before the verification code is sent, which will cause the wrong binding problem of the mobile phone and cannot be exchanged. Yilian Bank can't redeem it, so you need to contact the manual customer service to rebind the mobile phone number to redeem it.