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Frequently asked questions

Tap a question to see the answer.

Do I need a tablet or any hardware?

No. Your phone is all it takes. Use the phone camera to scan the customer's QR and add stamps. On a PC, the owner web app manages your customer list and notifications.

Is there a contract or cancellation fee?

No. Cancel anytime and keep using the service until the end of the period you already paid for. The first month is free.

Does sending more notifications cost extra?

No. Notifications are unlimited on every plan. Pricing depends only on how many regulars visited in the last 6 months and how many stores you have. Promotional notifications only go to customers who opted in, and never between 9 PM and 8 AM.

What if a customer keeps changing their birthday to get more coupons?

It won't get them more coupons. Each store sends a birthday coupon to a customer at most once a year. Changing the birthday, leaving and rejoining the store, or deleting the account and signing up again with the same login makes no difference.

Do customers have to install the app?

No. Scan the QR at the counter and a web card opens in your browser in about three seconds. Install the app when you want notifications for coupons and store news — your stamps come with you.

How do you prevent fake stamps?

A stamp is only added when the owner or staff scans the customer's QR or types the code. Codes expire after 60 seconds and work only once, so only customers checked in person at the store get stamped.

Can my staff use it?

Yes. Give each staff member an access code and choose what they can do. Billing, staff management and store settings stay owner-only.

Is customer data safe?

Data never mixes between stores, and invited guests' phone numbers are stored encrypted. Event guest lists are deleted automatically 30 days after the event.

What happens when the free trial ends?

Nothing is charged until you register a payment method. Register a card under Owner web › Settings › Billing and the first charge happens on the day the trial ends, then on the same day each month.

Do I get a refund if I cancel mid-month?

Cancelling stops the next charge, and you keep the rest of the month you already paid for. Remaining days aren't refunded, except that cancelling within 7 days of your first payment gets a full refund.

What happens to my bill if I change plans?

Plans never change on their own — you switch them yourself. Upgrading applies immediately and you pay only the prorated difference for the remaining days. Downgrading applies from the next billing date. Adding a store works the same way.

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The Terms of Service and Privacy Policy are provided in Korean, which is the binding version.

KOK · CEO Heetak Chae · Business Reg. No. 761-19-02804 · Mail-order Sales Reg. No. 2026-Bucheon Ojeong-0376

Bldg 3 Unit 402, 51 Yeokgok-ro 421beon-gil, Ojeong-gu, Bucheon-si, Gyeonggi-do, Korea · Tel +82-70-8095-1683 · hello@kokstamp.com

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