You can check your upcoming invoice and manage credit card here,
How to register a credit card?
You can add a credit card at /mypage. Credit card is the only payment method available. If you can't register your card, please let us know.
How much should I pay?
How can I cancel the subscription?
You can cancel the subscription by deleting your credit card at /mypage.
Can I get a refund for the subscription?
Yes, but it depends on the period of your usage after payment. Please contact us through messenger or support@oopy.io.