Try these in order.
- Check the email address. Use the one you bought or registered with. Work and personal addresses are separate accounts.
- Reset the password. Use Forgot your password on the sign in page. The link lasts one hour and only the newest one works.
- Signed up with Google? Use Continue with Google rather than a password, or reset the password once to set one.
- Two-step sign in asking for a code you do not have? Use Use a backup code.
- Still stuck? Clear your browser cache or try a private window, which rules out an old session getting in the way.
If none of that works, message us from the email address on the account and we will sort it manually.