Please tell me how to pay

Payment can be made by bank transfer (the payment will be charged by Stripe. Payment will be confirmed within 1-2 business days). You can choose from 2 credit cards. In the case of credit card payment, it will be automatically updated (can be changed to manual update from the management screen).

would you please give me the receipt

You can download the receipt from My Page. The URL for My Page is included in the e-mail sent to you upon payment completion.