Luka_originals from TidyCal answered another user on August 3, 2026 and said the most common cause is an email mismatch: the license attaches only to the TidyCal account whose email exactly matches your AppSumo purchase. First try a password reset on TidyCal using the exact email from your AppSumo order to see if an account exists. If that doesn't work, email support@tidycal.com with the email from your AppSumo order and your order number and they'll attach the Agency Lifetime license manually. Two quick notes: don't post your code publicly and don't register a new account in the meantime, as that creates a second empty account they'd then have to merge. You can find that answer here: https://appsumo.com/products/tidycal/questions/i-bought-tidycal-on-24-nov-2024-licen-1529573/