Will I lose access to an email account if I switch internet suppliers if the email is linked to the old provider ? Example ( name ) ( internet provider ) .ca or.com ? Hope this makes sense ...btw.

Unless your email is a paid one that is part of your internet package, then it's unlikely that you'll no longer be able to access it.

And if this was the case, the company would have to contact you in advance to alert you to the fact that your email would no longer be supported, in order to give you enough time to retrieve stuff from your inbox.