This is a phishing email from a Mastercard scammer.  They want me to call this number and give them confidential information

Yep.  A scam all right and not a particularly clever one.   I mean, how many bankers do you know who use the term, "legit?"

Here's what they write: "We regret to inform you that we have received numerous fraudulent emails which ask for personal
account information. The emails contained links to fraudulent pages that looked legit."

Uh huh...  You mean like yours?