When I switched from Taltalk (Tiscali) several years ago, to Plusnet, TT threatened to cut my TT email off within 3 months, unless I paid them a fee to maintain access. I really wasn't bothered enough to pay, because TT had there customer database hacked, so 95% of the incoming email to the account was spam or phishing attempts.
Years later, long after deleting the automatic login from Outlook, I can go online to check via webmail, which suggests TT were simply making idle threats to close my email account.