Skip to content
Features How it works Pricing FAQ Help
Log in Start free trial Your account Open the web app
Features How it works Pricing FAQ Help
Log in Start free trial Your account Open the web app
  1. Help
  2. Privacy & data

Contact support or report a problem

Write to us right in the app. It comes straight to us, with no email to send.

Updated October 3, 2026

More in Privacy & data
  1. Hide your numbers at the table
  2. Lock the app when you leave it
  3. Your data: where it lives and how to remove it
  4. Contact support or report a problem

Privacy & data

  1. Hide your numbers at the table
  2. Lock the app when you leave it
  3. Your data: where it lives and how to remove it
  4. Contact support or report a problem

All help topics

  1. Open Settings and, under Help, tap Contact support or Report a problem.
  2. Write your question, or what happened and what you expected.
  3. Tap Send. It comes straight to us.

It goes with the app version, your device and your plan, and from your account when you’re logged in, so we can write back to your email. A problem report also has the screen you were on, the last things the app did (screens and buttons only) and the app’s recent errors on your device.

When we reply to something you sent while logged in, you get a notification and the reply is behind the bell: tap it to read what we did, with your message under it. To turn off the notification, use Replies to your reports in Settings → Notifications; the bell still shows the reply.

It never includes your cards, customers, prices or money. Tap See what’s sent to read the list before you send a report.

While we’re testing, a little bug button sits in the bottom corner (just above the eye when the eye is down there): tap it the moment you see a problem, or switch to Idea to suggest something. It opens a report for the screen you’re on, with the app’s recent errors on your device instead of a screenshot. Turn it off in Settings → Help → Show the bug button.

When a screen hits a problem

You’ll see Reload this screen and Send a report, and Go back when there’s a screen to go back to. What you’ve saved is safe. The app also sends us a short note about the error on its own, with no account and nothing about your business, so we can fix it.

Tip. Never send your password. We’ll never ask for it.

Related

  • Release notes, tours and the ? on each screenWhat each screen’s ? shows, where to see what’s new, and how to take a tour again.
  • Your data: where it lives and how to remove itWhat’s saved where, how to export or erase it, and what we never do with it.
  • The bell: your alertsWhat the bell tells you about, and how to read and clear your alerts.

Still stuck?

Send us a message and we’ll help. Tell us what you tapped and what you expected to happen. Please don’t send passwords or card numbers.

Contact supportReport a problem

The card-show app for trading-card vendors.

Coming soon to the App Store.

Product

  • Features
  • All features
  • Pricing
  • FAQ
  • Help center
  • What’s new

Account

  • Start free trial
  • Log in
  • Your account

Legal

  • Privacy Policy
  • Terms of Service
  • Data sources & credits

Contact

  • [email protected]

© 2026 HSC Commerce LLC. CardBull is a brand of HSC Commerce LLC.

Made in Hawaii.

Pokémon, Magic: The Gathering, Yu-Gi-Oh!, One Piece and TCGplayer are trademarks of their respective owners. CardBull is not affiliated with or endorsed by them. Market data provided by JustTCG.