https://www.desidime.com/discussions/not-able-to-change-mobile-number-sbi-cb-card?page=1#post_9191552
you can change it after 3 months, not before that
you can change it after 3 months, not before that
EndOfHistory wrote:Ok.Thanksyou can change it after 3 months, not before that
i was facing same error from mobile app within 2nd months but eventually changed it successfully from the desktop website.