My reset code is rejected, or I'm told there have been too many attempts

Check these first:

• Use the newest email. Each new request cancels the previous code, so an older message will always be rejected.
• Check the clock. A reset code lasts 15 minutes; after that you need a fresh one.
• Watch for stray characters. Copying from an email sometimes brings a trailing space along.

If you are told there have been too many attempts, guesses are being limited to protect the account: the limit is 10 attempts per address in a 15-minute window. Wait for the window to pass, request a new code, and enter it carefully — the wait cannot be lifted early, by us or by anyone else.