Legal
Refund & cancellation policy
You can cancel Superbill Pro whenever you like. You can ask for a refund of your first Pro payment within 3 days of paying. Renewals and the unused part of a billing period are not refunded.
Last updated October 24, 2026.
- Price
- $15 per month or $99 per year, billed by Creem
- Cancel
- Any time, in the Creem customer portal
- First-purchase refund
- On request within 3 days of your first payment
- Ask us
- support@dtchain.org
- Store / Seller
- Heyi Lab
- Operated by
- Ning Zhang
Who handles the money
Payments for Superbill Pro are handled by Creem (creem.io), which acts as the merchant of record. Creem processes the payment, calculates and collects any sales tax or VAT, sends your receipt and emails you the license key. Refunds are paid by Creem back to the payment method you used. Your bank decides how long it takes to show up, usually a few business days.
How to cancel
Open the Creem customer portal, log in with the email address you used at checkout (Creem sends you a sign-in link), and cancel the subscription. The same link is in your receipt email. Cancelling stops future renewals. You do not need to contact us first, and there is no cancellation fee.
Cancelling does not by itself refund a payment you have already made, and the unused part of a billing period that you have already paid for is not refunded (see below). If you cannot cancel for any reason, email support@dtchain.org and we will do it for you.
First purchase: 3-day refund on request
If Superbill Pro is not right for you, email support@dtchain.org within 3 days of your first payment and ask for a refund. You do not need to give a reason, though knowing what went wrong helps us fix it. This applies to the first payment on a plan, whether monthly or yearly. We will confirm and ask Creem to refund the payment in full.
When a payment is refunded, the license key is switched off and the device returns to the free plan. Your data is not affected, because it never leaves your browser.
What is not refunded
If we made a mistake, for example you were charged twice or charged after you had cancelled, tell us and we will put it right, and that is not limited by the rules above.
- Renewal payments, monthly or yearly, once the 3-day window after your first payment has passed. To avoid a renewal you do not want, cancel before the renewal date.
- The unused part of a billing period you have already paid for. If you cancel in the middle of a month or a year, Pro stays available until that period ends and no further payment is taken.
Problems with a purchase
If something does not work (a missing license key, an activation error, the device limit), email support@dtchain.org first. Most problems can be fixed the same day. We reply within 3 business days. Please include the email address you used at checkout, but never any client information.
This policy does not limit rights you have under the law where you live. Creem’s Buyer Terms apply to the payment itself.