To update your email address, please log in to the Touch Panel Control website (not TPCloud) using your old email address and go to 'TPC > My Account > Profile'.
There you can edit your email address and then press 'SAVE'. An email will be forwarded to your new address and to complete new email verification click the relevant link in the email. Upon verification, any existing TPControl Tokens and resources will migrate to the new email address. Review any existing tokens by logging in to TPCloud using your new email/TPC User ID.