＜Sign-in, Payment,Cancel subscription＞
■How do I sign in?
■Payment Method
■How can I cancel subscription?
Your payment information is managed by KDDI.
For details on changes in payment methods, please contact KDDI
Your contract is managed by KDDI. Cancelling your subscription is accepted at KDDI platform (My au [web / app], au shop and customer center). For details, please contact KDDI with reference to the following.
https://www.au.com/support/inquiry/