These are not "phishing" so much as they are unsolicited sales calls.  When that email is open, I generally block that sender by going to this icon at the upper left of the open email and then the drop down menu has the option to block sender.  You won’t (or shouldn't!) get anything from them again.  It will move that email to Junk, so you aren’t able to then report it as phishing, so it’s up to you how you want to handle it.  Feel free to report as phishing