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. You may cancel anytime through Shopify's applicable subscription or uninstall controls. Cancellation completed before the 14-day app trial ends prevents that subscription starting a paid period. Actual access end follows Shopify's confirmed contract; uninstall immediately ends access. No current-period prorated refunds are provided. Refunds required by law and verified duplicate or erroneous charges are handled as specified in the cancellation and refund policy; other discretionary refunds are generally not offered. Mandatory rights and Shopify adjustments are preserved. Include the charge date, amount and a non-sensitive description when contacting support. A support email alone does not cancel a subscription. No automatic refund or fixed response-time guarantee is made. 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.

See privacy information and service terms information.