Contact support
Email support@rillnook.com for ProofGate support, review assistance, privacy questions or billing/refund inquiries. Support language: English. Operating country: Japan.
The public developer brand is Rillnook Labs. The Rillnook Labs owner/operator is the incident-response contact. The legal operator is 鎌田将矢. Rillnook Labs remains the public brand/developer name; no separate incorporated entity is asserted.
What to include
Describe the action, approximate time and a non-sensitive error code. For a suspected security issue, describe the affected feature without attaching customer data. Do not email passwords, session cookies, API tokens, card details, customer proof links or complete privacy exports. If sensitive evidence is necessary, agree on an appropriate secure channel first.
Order and privacy requests
Customers should contact their merchant for order changes, artwork decisions and data requests. Merchant Owners retain responsibility for actual provision of requested subject data; downloading an export alone does not complete that duty. Support will not ask you to repeat completed transactions or attest to provision that did not occur.
Billing and availability
App subscription questions and merchant-charged revision services are separate. Describe which charge you are asking about; no refund or response-time promise is implied. The app is in pre-release development/review preparation, not public sale. Development test charges and handoff reports are not production payment or manufacturing authorization.