カード申し込み受付ID (Application Reference ID) is 8 alphanumeric ID generated after applying for a credit card with Rakuten Card .
When you confirm your the status of your credit card application online,you need to enter カード申し込み受付ID (Application Reference ID).
Regarding カード申し込み受付ID (Application Reference ID),we display last step of your application and on the email after applying.
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Click here to directly confirm on your credit card application’s status.
【e-mail sample】
Subject : お申し込み受付のお知らせ【楽天カード株式会社】