Export your data (instant, self-service):
Go to Settings, then "Export your data", and click Export data. You get a complete bundle of your account data immediately — no ticket needed. If you are considering deleting your account, export first: the export is not available after deletion.

Delete your account (request-based):
Go to Settings, then Delete account. This files a deletion request with our support team — the account is not erased immediately. We confirm the request with you by email first, and only then permanently remove the account and its data. The confirmation step exists so a mistaken click (or someone else at your keyboard) cannot destroy your account.

So the short version: export any data you want to keep, request deletion from Settings, and reply to our confirmation email. If you cannot access the dashboard, email us from the account's email address instead.