You can donate here. You can pay by your credit card.
These kinds of cards available.
Select the amount you donate, click "Submit".
You will be directed to the payment page, administered by Telecom Credit Co.,Ltd.
*Notes on donations by credit card
Your donations are to be withdrawn from your bank account on a scheduled due date fixed by your credit card company>Amount limit
The minimum donation amount by credit card is 1,000 yen.>Cancellation
For fraud prevention, the maximum donation amount by credit card is limited to 70,000 yen per day, and 250,000 yen per month.
Your personal information will not be revealed to a third party without your prior consent.>Credit card payment service agency
Your donations by credit card are collected by TelecomCredit.Co.,Ltd. for the Suginoko Foundation.