Beware of phishing scam

[Mossfern]

18. Yesterday I got a text/email from my bank

that is associated with a credit card. Within the text it did have the last four digits of my credit card number.
They were confirming about $1000.00 of charges made on that card at 4 am.

I did call the number given in both messages, but when I was asked for my full credit card number.
I hung up and called the number on the back of my credit card to resolve the issue.

It turned out that indeed the messages were real fraud alerts. They immediately closed my account and are investigating. I'll be reimbursed the charges and given a new card within the week.

My question is.... I NEVER use that card for purchases in stores. It has never left my wallet.
How did someone get my information? I did use it on the evening of White Women for Kamala Harris to make a donation, on that card, but hardly think the hacking was from that.

I never give out personal information on the phone.