You can retain just the email address as an email-only service but there is a $7/month (as of 20/09/2023) charge associated with it. Be sure to make a specific request to retain email-only service. It's a bummer we don't have anything faster to offer her at this time, though.
There is some information here that implies it's an option:
You will likely need to talk to Telus to confirm and make the arrangements.