Payment successful
Thank you for your purchase.
Your purchase is tied to the same MyColdKey account you used at checkout (the one you use in the desktop app).
Full walkthrough (account, email mismatch, offline activation).
In the app
Open MyColdKey → Account / Settings → Sync Purchases. If you just created your account on the web, confirm your email first if Cognito asked you to — then sign in and sync.
Cannot sync online?
Only needed if your device cannot connect to the internet — most users can skip this entirely and use Sync Purchases in the app.
If this machine is air-gapped or you cannot use Sync Purchases, open Account Settings → Devices & Activation → Offline Activation in the app, export activation-request.json, and contact support with that file and your order details. Your purchase stays linked to your account. Support may send one or two files (.mck and/or .dlc). If you receive both, import the license token (.mck) first, then the device certificate (.dlc). Imports happen in the app under Devices & Activation.