After you pay — switch on Pro in the app. Open ClipSalvage, click Upgrade, then "I've upgraded — refresh my license" to switch to Pro. If it still shows Decrypt, re-enter your purchase email and activation code in the same dialog. No new code is issued — your existing code now unlocks Pro.
Lost your activation code? Resend it to your purchase email first, then come back here. Bought Decrypt under a different address, or think this is a mistake? Write to [email protected] and we'll sort it out.