Rakuten Card may make automated calls to customers who have not made their payments by due date (the 27th of each month, or the next business day if the financial institution is closed).
The phone number is 050-3801-3600. (available from 8:30 AM to 10:30 PM)
For customers who have been contacted by Rakuten Card, you can follow the voice guidance (Japanese only) to confirm your payment date and payment method.
Additionally, you can check other payment procedures from the link below. Please confirm them as well.
Confirm the payment procedures here >