How do I change my details?
Please change any new addresses, telephone numbers, bank details or email addresses in your user account. To do this, log in and click on ‘My account/Overview’ in the top right-hand corner.
Under ‘Personal data’, you can change your name, email address and password.
https://koi-company.com/General-FAQ/Account/How-do-I-change-my-details
Under Addresses, you can enter new billing and delivery addresses.
If you have new bank details, please enter them during the payment process when placing your next order. For security reasons, your bank details cannot be changed in your user account.