We are unable to transfer to the accounts' of customers that are registered with Japan Post Bank and have not registered their 7 digit acount number. We apologize for the inconvenience.
Please use the following page as an example for how to change the account number.
●Sending money between Japan Post Bank accounts and other banking institutions -Japan Post Bank http://www.jp-bank.japanpost.jp/kojin/sokin/furikomi/kj_sk_fm_furikomi.html
●Using index number to look up store names, bank account types, and account numbers for transfer -Japan Post Bank